21121106992

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{222947}}^1$

素因数の和:223177

約数の個数: 40

約数和(自身を含む): 42463567872

約数和(自身を除く): 21342460880

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 191, 248, 382, 496, 764, 1528, 3056, 5921, 11842, 23684, 47368, 94736, 222947, 445894, 891788, 1783576, 3567152, 6911357, 13822714, 27645428, 42582877, 55290856, 85165754, 110581712, 170331508, 340663016, 681326032, 1320069187, 2640138374, 5280276748, 10560553496, 21121106992]

約数ペア:

[(1, 21121106992), (2, 10560553496), (4, 5280276748), (8, 2640138374), (16, 1320069187), (31, 681326032), (62, 340663016), (124, 170331508), (191, 110581712), (248, 85165754), (382, 55290856), (496, 42582877), (764, 27645428), (1528, 13822714), (3056, 6911357), (5921, 3567152), (11842, 1783576), (23684, 891788), (47368, 445894), (94736, 222947)]