21969035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21023}}^1$

素因数の和:21058

約数の個数: 16

約数和(自身を含む): 30274560

約数和(自身を除く): 8305525

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 21023, 105115, 231253, 399437, 1156265, 1997185, 4393807, 21969035]

約数ペア:

[(1, 21969035), (5, 4393807), (11, 1997185), (19, 1156265), (55, 399437), (95, 231253), (209, 105115), (1045, 21023)]