21942249

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2525

約数の個数: 24

約数和(自身を含む): 34604928

約数和(自身を除く): 12662679

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2447, 2989, 7341, 8967, 17129, 51387, 119903, 149267, 359709, 447801, 1044869, 3134607, 7314083, 21942249]

約数ペア:

[(1, 21942249), (3, 7314083), (7, 3134607), (21, 1044869), (49, 447801), (61, 359709), (147, 149267), (183, 119903), (427, 51387), (1281, 17129), (2447, 8967), (2989, 7341)]