21176716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 43263360

約数和(自身を除く): 22086644

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 73, 76, 146, 209, 292, 347, 418, 694, 803, 836, 1387, 1388, 1606, 2774, 3212, 3817, 5548, 6593, 7634, 13186, 15257, 15268, 25331, 26372, 30514, 50662, 61028, 72523, 101324, 145046, 278641, 290092, 481289, 557282, 962578, 1114564, 1925156, 5294179, 10588358, 21176716]

約数ペア:

[(1, 21176716), (2, 10588358), (4, 5294179), (11, 1925156), (19, 1114564), (22, 962578), (38, 557282), (44, 481289), (73, 290092), (76, 278641), (146, 145046), (209, 101324), (292, 72523), (347, 61028), (418, 50662), (694, 30514), (803, 26372), (836, 25331), (1387, 15268), (1388, 15257), (1606, 13186), (2774, 7634), (3212, 6593), (3817, 5548)]