20171978210

素因数分解:

$2^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2457001}}^1$

素因数の和:2457829

約数の個数: 16

約数和(自身を含む): 36353801592

約数和(自身を除く): 16181823382

約数列:

[1, 2, 5, 10, 821, 1642, 4105, 8210, 2457001, 4914002, 12285005, 24570010, 2017197821, 4034395642, 10085989105, 20171978210]

約数ペア:

[(1, 20171978210), (2, 10085989105), (5, 4034395642), (10, 2017197821), (821, 24570010), (1642, 12285005), (4105, 4914002), (8210, 2457001)]