20151558

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31688442

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 89, 126, 178, 189, 267, 378, 534, 599, 623, 801, 1198, 1246, 1602, 1797, 1869, 2403, 3594, 3738, 4193, 4806, 5391, 5607, 8386, 10782, 11214, 12579, 16173, 16821, 25158, 32346, 33642, 37737, 53311, 75474, 106622, 113211, 159933, 226422, 319866, 373177, 479799, 746354, 959598, 1119531, 1439397, 2239062, 2878794, 3358593, 6717186, 10075779, 20151558]

約数ペア:

[(1, 20151558), (2, 10075779), (3, 6717186), (6, 3358593), (7, 2878794), (9, 2239062), (14, 1439397), (18, 1119531), (21, 959598), (27, 746354), (42, 479799), (54, 373177), (63, 319866), (89, 226422), (126, 159933), (178, 113211), (189, 106622), (267, 75474), (378, 53311), (534, 37737), (599, 33642), (623, 32346), (801, 25158), (1198, 16821), (1246, 16173), (1602, 12579), (1797, 11214), (1869, 10782), (2403, 8386), (3594, 5607), (3738, 5391), (4193, 4806)]