1388394429

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{1231}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 1996431360

約数和(自身を除く): 608036931

約数列:

[1, 3, 19, 47, 57, 141, 421, 893, 1231, 1263, 2679, 3693, 7999, 19787, 23389, 23997, 57857, 59361, 70167, 173571, 375953, 518251, 1099283, 1127859, 1554753, 3297849, 9846769, 24357797, 29540307, 73073391, 462798143, 1388394429]

約数ペア:

[(1, 1388394429), (3, 462798143), (19, 73073391), (47, 29540307), (57, 24357797), (141, 9846769), (421, 3297849), (893, 1554753), (1231, 1127859), (1263, 1099283), (2679, 518251), (3693, 375953), (7999, 173571), (19787, 70167), (23389, 59361), (23997, 57857)]