21391748820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{32533}}^1$

素因数の和:32842

約数の個数: 144

約数和(自身を含む): 70130550672

約数和(自身を除く): 48738801852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 281, 390, 468, 562, 585, 780, 843, 1124, 1170, 1405, 1686, 2340, 2529, 2810, 3372, 3653, 4215, 5058, 5620, 7306, 8430, 10116, 10959, 12645, 14612, 16860, 18265, 21918, 25290, 32533, 32877, 36530, 43836, 50580, 54795, 65066, 65754, 73060, 97599, 109590, 130132, 131508, 162665, 164385, 195198, 219180, 292797, 325330, 328770, 390396, 422929, 487995, 585594, 650660, 657540, 845858, 975990, 1171188, 1268787, 1463985, 1691716, 1951980, 2114645, 2537574, 2927970, 3806361, 4229290, 5075148, 5855940, 6343935, 7612722, 8458580, 9141773, 12687870, 15225444, 18283546, 19031805, 25375740, 27425319, 36567092, 38063610, 45708865, 54850638, 76127220, 82275957, 91417730, 109701276, 118843049, 137126595, 164551914, 182835460, 237686098, 274253190, 329103828, 356529147, 411379785, 475372196, 548506380, 594215245, 713058294, 822759570, 1069587441, 1188430490, 1426116588, 1645519140, 1782645735, 2139174882, 2376860980, 3565291470, 4278349764, 5347937205, 7130582940, 10695874410, 21391748820]

約数ペア:

[(1, 21391748820), (2, 10695874410), (3, 7130582940), (4, 5347937205), (5, 4278349764), (6, 3565291470), (9, 2376860980), (10, 2139174882), (12, 1782645735), (13, 1645519140), (15, 1426116588), (18, 1188430490), (20, 1069587441), (26, 822759570), (30, 713058294), (36, 594215245), (39, 548506380), (45, 475372196), (52, 411379785), (60, 356529147), (65, 329103828), (78, 274253190), (90, 237686098), (117, 182835460), (130, 164551914), (156, 137126595), (180, 118843049), (195, 109701276), (234, 91417730), (260, 82275957), (281, 76127220), (390, 54850638), (468, 45708865), (562, 38063610), (585, 36567092), (780, 27425319), (843, 25375740), (1124, 19031805), (1170, 18283546), (1405, 15225444), (1686, 12687870), (2340, 9141773), (2529, 8458580), (2810, 7612722), (3372, 6343935), (3653, 5855940), (4215, 5075148), (5058, 4229290), (5620, 3806361), (7306, 2927970), (8430, 2537574), (10116, 2114645), (10959, 1951980), (12645, 1691716), (14612, 1463985), (16860, 1268787), (18265, 1171188), (21918, 975990), (25290, 845858), (32533, 657540), (32877, 650660), (36530, 585594), (43836, 487995), (50580, 422929), (54795, 390396), (65066, 328770), (65754, 325330), (73060, 292797), (97599, 219180), (109590, 195198), (130132, 164385), (131508, 162665)]