81402399

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:632

約数の個数: 36

約数和(自身を含む): 128751480

約数和(自身を除く): 47349081

約数列:

[1, 3, 9, 13, 39, 109, 117, 169, 327, 491, 507, 981, 1417, 1473, 1521, 4251, 4419, 6383, 12753, 18421, 19149, 53519, 55263, 57447, 82979, 160557, 165789, 248937, 481671, 695747, 746811, 2087241, 6261723, 9044711, 27134133, 81402399]

約数ペア:

[(1, 81402399), (3, 27134133), (9, 9044711), (13, 6261723), (39, 2087241), (109, 746811), (117, 695747), (169, 481671), (327, 248937), (491, 165789), (507, 160557), (981, 82979), (1417, 57447), (1473, 55263), (1521, 53519), (4251, 19149), (4419, 18421), (6383, 12753)]