18668858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 31413312

約数和(自身を除く): 12744454

約数列:

[1, 2, 13, 26, 41, 82, 83, 166, 211, 422, 533, 1066, 1079, 2158, 2743, 3403, 5486, 6806, 8651, 17302, 17513, 35026, 44239, 88478, 112463, 224926, 227669, 455338, 718033, 1436066, 9334429, 18668858]

約数ペア:

[(1, 18668858), (2, 9334429), (13, 1436066), (26, 718033), (41, 455338), (82, 227669), (83, 224926), (166, 112463), (211, 88478), (422, 44239), (533, 35026), (1066, 17513), (1079, 17302), (2158, 8651), (2743, 6806), (3403, 5486)]