64037071

素因数分解:

$7^4\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:356

約数の個数: 20

約数和(自身を含む): 75627000

約数和(自身を除く): 11589929

約数列:

[1, 7, 49, 149, 179, 343, 1043, 1253, 2401, 7301, 8771, 26671, 51107, 61397, 186697, 357749, 429779, 1306879, 9148153, 64037071]

約数ペア:

[(1, 64037071), (7, 9148153), (49, 1306879), (149, 429779), (179, 357749), (343, 186697), (1043, 61397), (1253, 51107), (2401, 26671), (7301, 8771)]