21290969438

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{1721}}^1\times {\mathrm{44501}}^1$

素因数の和:46363

約数の個数: 16

約数和(自身を含む): 32185626480

約数和(自身を除く): 10894657042

約数列:

[1, 2, 139, 278, 1721, 3442, 44501, 89002, 239219, 478438, 6185639, 12371278, 76586221, 153172442, 10645484719, 21290969438]

約数ペア:

[(1, 21290969438), (2, 10645484719), (139, 153172442), (278, 76586221), (1721, 12371278), (3442, 6185639), (44501, 478438), (89002, 239219)]