20457139970

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9695327}}^1$

素因数の和:9695545

約数の個数: 16

約数和(自身を含む): 36997371648

約数和(自身を除く): 16540231678

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 9695327, 19390654, 48476635, 96953270, 2045713997, 4091427994, 10228569985, 20457139970]

約数ペア:

[(1, 20457139970), (2, 10228569985), (5, 4091427994), (10, 2045713997), (211, 96953270), (422, 48476635), (1055, 19390654), (2110, 9695327)]