18810428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1722

約数の個数: 48

約数和(自身を含む): 41846784

約数和(自身を除く): 23036356

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 1667, 2821, 3334, 5642, 6668, 11284, 11669, 21671, 23338, 43342, 46676, 51677, 86684, 103354, 151697, 206708, 303394, 361739, 606788, 671801, 723478, 1343602, 1446956, 2687204, 4702607, 9405214, 18810428]

約数ペア:

[(1, 18810428), (2, 9405214), (4, 4702607), (7, 2687204), (13, 1446956), (14, 1343602), (26, 723478), (28, 671801), (31, 606788), (52, 361739), (62, 303394), (91, 206708), (124, 151697), (182, 103354), (217, 86684), (364, 51677), (403, 46676), (434, 43342), (806, 23338), (868, 21671), (1612, 11669), (1667, 11284), (2821, 6668), (3334, 5642)]