20019374921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{6857}}^1\times {\mathrm{32083}}^1$

素因数の和:38960

約数の個数: 16

約数和(自身を含む): 24643592064

約数和(自身を除く): 4624217143

約数列:

[1, 7, 13, 91, 6857, 32083, 47999, 89141, 224581, 417079, 623987, 2919553, 219993131, 1539951917, 2859910703, 20019374921]

約数ペア:

[(1, 20019374921), (7, 2859910703), (13, 1539951917), (91, 219993131), (6857, 2919553), (32083, 623987), (47999, 417079), (89141, 224581)]