81213668

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{7517}}^1$

素因数の和:7631

約数の個数: 24

約数和(自身を含む): 147984312

約数和(自身を除く): 66770644

約数列:

[1, 2, 4, 37, 73, 74, 146, 148, 292, 2701, 5402, 7517, 10804, 15034, 30068, 278129, 548741, 556258, 1097482, 1112516, 2194964, 20303417, 40606834, 81213668]

約数ペア:

[(1, 81213668), (2, 40606834), (4, 20303417), (37, 2194964), (73, 1112516), (74, 1097482), (146, 556258), (148, 548741), (292, 278129), (2701, 30068), (5402, 15034), (7517, 10804)]