20197821

素因数分解:

$3^1\times 7^1\times {\mathrm{827}}^1\times {\mathrm{1163}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 30841344

約数和(自身を除く): 10643523

約数列:

[1, 3, 7, 21, 827, 1163, 2481, 3489, 5789, 8141, 17367, 24423, 961801, 2885403, 6732607, 20197821]

約数ペア:

[(1, 20197821), (3, 6732607), (7, 2885403), (21, 961801), (827, 24423), (1163, 17367), (2481, 8141), (3489, 5789)]