21167704240

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1584409}}^1$

素因数の和:1584589

約数の個数: 40

約数和(自身を含む): 49509643680

約数和(自身を除く): 28341939440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 13360, 1584409, 3168818, 6337636, 7922045, 12675272, 15844090, 25350544, 31688180, 63376360, 126752720, 264596303, 529192606, 1058385212, 1322981515, 2116770424, 2645963030, 4233540848, 5291926060, 10583852120, 21167704240]

約数ペア:

[(1, 21167704240), (2, 10583852120), (4, 5291926060), (5, 4233540848), (8, 2645963030), (10, 2116770424), (16, 1322981515), (20, 1058385212), (40, 529192606), (80, 264596303), (167, 126752720), (334, 63376360), (668, 31688180), (835, 25350544), (1336, 15844090), (1670, 12675272), (2672, 7922045), (3340, 6337636), (6680, 3168818), (13360, 1584409)]