21486788

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{3541}}^1$

素因数の和:3623

約数の個数: 24

約数和(自身を含む): 39571224

約数和(自身を除く): 18084436

約数列:

[1, 2, 4, 37, 41, 74, 82, 148, 164, 1517, 3034, 3541, 6068, 7082, 14164, 131017, 145181, 262034, 290362, 524068, 580724, 5371697, 10743394, 21486788]

約数ペア:

[(1, 21486788), (2, 10743394), (4, 5371697), (37, 580724), (41, 524068), (74, 290362), (82, 262034), (148, 145181), (164, 131017), (1517, 14164), (3034, 7082), (3541, 6068)]