81756639

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{2671}}^1$

素因数の和:2875

約数の個数: 24

約数和(自身を含む): 125049600

約数和(自身を除く): 43292961

約数列:

[1, 3, 9, 19, 57, 171, 179, 537, 1611, 2671, 3401, 8013, 10203, 24039, 30609, 50749, 152247, 456741, 478109, 1434327, 4302981, 9084071, 27252213, 81756639]

約数ペア:

[(1, 81756639), (3, 27252213), (9, 9084071), (19, 4302981), (57, 1434327), (171, 478109), (179, 456741), (537, 152247), (1611, 50749), (2671, 30609), (3401, 24039), (8013, 10203)]