20697578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 35589888

約数和(自身を除く): 14892310

約数列:

[1, 2, 11, 22, 37, 47, 74, 94, 407, 517, 541, 814, 1034, 1082, 1739, 3478, 5951, 11902, 19129, 20017, 25427, 38258, 40034, 50854, 220187, 279697, 440374, 559394, 940799, 1881598, 10348789, 20697578]

約数ペア:

[(1, 20697578), (2, 10348789), (11, 1881598), (22, 940799), (37, 559394), (47, 440374), (74, 279697), (94, 220187), (407, 50854), (517, 40034), (541, 38258), (814, 25427), (1034, 20017), (1082, 19129), (1739, 11902), (3478, 5951)]