21031888577

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1727749}}^1$

素因数の和:1727840

約数の個数: 16

約数和(自身を含む): 25211328000

約数和(自身を除く): 4179439423

約数列:

[1, 7, 37, 47, 259, 329, 1739, 12173, 1727749, 12094243, 63926713, 81204203, 447486991, 568429421, 3004555511, 21031888577]

約数ペア:

[(1, 21031888577), (7, 3004555511), (37, 568429421), (47, 447486991), (259, 81204203), (329, 63926713), (1739, 12094243), (12173, 1727749)]