21738430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3931}}^1$

素因数の和:4024

約数の個数: 32

約数和(自身を含む): 45296640

約数和(自身を除く): 23558210

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3931, 5530, 7862, 19655, 27517, 39310, 55034, 137585, 275170, 310549, 621098, 1552745, 2173843, 3105490, 4347686, 10869215, 21738430]

約数ペア:

[(1, 21738430), (2, 10869215), (5, 4347686), (7, 3105490), (10, 2173843), (14, 1552745), (35, 621098), (70, 310549), (79, 275170), (158, 137585), (395, 55034), (553, 39310), (790, 27517), (1106, 19655), (2765, 7862), (3931, 5530)]