218652021

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 388546560

約数和(自身を除く): 169894539

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 67, 93, 189, 201, 217, 279, 469, 557, 603, 651, 837, 1407, 1671, 1809, 1953, 2077, 3899, 4221, 5013, 5859, 6231, 11697, 12663, 14539, 15039, 17267, 18693, 35091, 37319, 43617, 51801, 56079, 105273, 111957, 120869, 130851, 155403, 261233, 335871, 362607, 392553, 466209, 783699, 1007613, 1087821, 1156889, 2351097, 3263463, 3470667, 7053291, 8098223, 10412001, 24294669, 31236003, 72884007, 218652021]

約数ペア:

[(1, 218652021), (3, 72884007), (7, 31236003), (9, 24294669), (21, 10412001), (27, 8098223), (31, 7053291), (63, 3470667), (67, 3263463), (93, 2351097), (189, 1156889), (201, 1087821), (217, 1007613), (279, 783699), (469, 466209), (557, 392553), (603, 362607), (651, 335871), (837, 261233), (1407, 155403), (1671, 130851), (1809, 120869), (1953, 111957), (2077, 105273), (3899, 56079), (4221, 51801), (5013, 43617), (5859, 37319), (6231, 35091), (11697, 18693), (12663, 17267), (14539, 15039)]