21157110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{107}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 60147360

約数和(自身を除く): 38990250

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 107, 117, 130, 169, 195, 214, 234, 321, 338, 390, 507, 535, 585, 642, 845, 963, 1014, 1070, 1170, 1391, 1521, 1605, 1690, 1926, 2197, 2535, 2782, 3042, 3210, 4173, 4394, 4815, 5070, 6591, 6955, 7605, 8346, 9630, 10985, 12519, 13182, 13910, 15210, 18083, 19773, 20865, 21970, 25038, 32955, 36166, 39546, 41730, 54249, 62595, 65910, 90415, 98865, 108498, 125190, 162747, 180830, 197730, 235079, 271245, 325494, 470158, 542490, 705237, 813735, 1175395, 1410474, 1627470, 2115711, 2350790, 3526185, 4231422, 7052370, 10578555, 21157110]

約数ペア:

[(1, 21157110), (2, 10578555), (3, 7052370), (5, 4231422), (6, 3526185), (9, 2350790), (10, 2115711), (13, 1627470), (15, 1410474), (18, 1175395), (26, 813735), (30, 705237), (39, 542490), (45, 470158), (65, 325494), (78, 271245), (90, 235079), (107, 197730), (117, 180830), (130, 162747), (169, 125190), (195, 108498), (214, 98865), (234, 90415), (321, 65910), (338, 62595), (390, 54249), (507, 41730), (535, 39546), (585, 36166), (642, 32955), (845, 25038), (963, 21970), (1014, 20865), (1070, 19773), (1170, 18083), (1391, 15210), (1521, 13910), (1605, 13182), (1690, 12519), (1926, 10985), (2197, 9630), (2535, 8346), (2782, 7605), (3042, 6955), (3210, 6591), (4173, 5070), (4394, 4815)]