21697750

素因数分解:

$2^1\times 5^3\times {\mathrm{229}}^1\times {\mathrm{379}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 40903200

約数和(自身を除く): 19205450

約数列:

[1, 2, 5, 10, 25, 50, 125, 229, 250, 379, 458, 758, 1145, 1895, 2290, 3790, 5725, 9475, 11450, 18950, 28625, 47375, 57250, 86791, 94750, 173582, 433955, 867910, 2169775, 4339550, 10848875, 21697750]

約数ペア:

[(1, 21697750), (2, 10848875), (5, 4339550), (10, 2169775), (25, 867910), (50, 433955), (125, 173582), (229, 94750), (250, 86791), (379, 57250), (458, 47375), (758, 28625), (1145, 18950), (1895, 11450), (2290, 9475), (3790, 5725)]