20218178463

素因数分解:

$3^1\times 7^2\times {\mathrm{2683}}^1\times {\mathrm{51263}}^1$

素因数の和:53963

約数の個数: 24

約数和(自身を含む): 31371107328

約数和(自身を除く): 11152928865

約数列:

[1, 3, 7, 21, 49, 147, 2683, 8049, 18781, 51263, 56343, 131467, 153789, 358841, 394401, 1076523, 2511887, 7535661, 137538629, 412615887, 962770403, 2888311209, 6739392821, 20218178463]

約数ペア:

[(1, 20218178463), (3, 6739392821), (7, 2888311209), (21, 962770403), (49, 412615887), (147, 137538629), (2683, 7535661), (8049, 2511887), (18781, 1076523), (51263, 394401), (56343, 358841), (131467, 153789)]