21281130

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 160

約数和(自身を含む): 64399104

約数和(自身を除く): 43117974

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 43, 45, 47, 54, 65, 78, 81, 86, 90, 94, 117, 129, 130, 135, 141, 162, 195, 215, 234, 235, 258, 270, 282, 351, 387, 390, 405, 423, 430, 470, 559, 585, 611, 645, 702, 705, 774, 810, 846, 1053, 1118, 1161, 1170, 1222, 1269, 1290, 1410, 1677, 1755, 1833, 1935, 2021, 2106, 2115, 2322, 2538, 2795, 3055, 3354, 3483, 3510, 3666, 3807, 3870, 4042, 4230, 5031, 5265, 5499, 5590, 5805, 6063, 6110, 6345, 6966, 7614, 8385, 9165, 10062, 10105, 10530, 10998, 11610, 12126, 12690, 15093, 16497, 16770, 17415, 18189, 18330, 19035, 20210, 25155, 26273, 27495, 30186, 30315, 32994, 34830, 36378, 38070, 45279, 49491, 50310, 52546, 54567, 54990, 60630, 75465, 78819, 82485, 90558, 90945, 98982, 109134, 131365, 150930, 157638, 163701, 164970, 181890, 226395, 236457, 247455, 262730, 272835, 327402, 394095, 452790, 472914, 494910, 545670, 709371, 788190, 818505, 1182285, 1418742, 1637010, 2128113, 2364570, 3546855, 4256226, 7093710, 10640565, 21281130]

約数ペア:

[(1, 21281130), (2, 10640565), (3, 7093710), (5, 4256226), (6, 3546855), (9, 2364570), (10, 2128113), (13, 1637010), (15, 1418742), (18, 1182285), (26, 818505), (27, 788190), (30, 709371), (39, 545670), (43, 494910), (45, 472914), (47, 452790), (54, 394095), (65, 327402), (78, 272835), (81, 262730), (86, 247455), (90, 236457), (94, 226395), (117, 181890), (129, 164970), (130, 163701), (135, 157638), (141, 150930), (162, 131365), (195, 109134), (215, 98982), (234, 90945), (235, 90558), (258, 82485), (270, 78819), (282, 75465), (351, 60630), (387, 54990), (390, 54567), (405, 52546), (423, 50310), (430, 49491), (470, 45279), (559, 38070), (585, 36378), (611, 34830), (645, 32994), (702, 30315), (705, 30186), (774, 27495), (810, 26273), (846, 25155), (1053, 20210), (1118, 19035), (1161, 18330), (1170, 18189), (1222, 17415), (1269, 16770), (1290, 16497), (1410, 15093), (1677, 12690), (1755, 12126), (1833, 11610), (1935, 10998), (2021, 10530), (2106, 10105), (2115, 10062), (2322, 9165), (2538, 8385), (2795, 7614), (3055, 6966), (3354, 6345), (3483, 6110), (3510, 6063), (3666, 5805), (3807, 5590), (3870, 5499), (4042, 5265), (4230, 5031)]