27431205

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 18187995

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 355, 599, 645, 1065, 1797, 2995, 3053, 8985, 9159, 15265, 25757, 42529, 45795, 77271, 127587, 128785, 212645, 386355, 637935, 1828747, 5486241, 9143735, 27431205]

約数ペア:

[(1, 27431205), (3, 9143735), (5, 5486241), (15, 1828747), (43, 637935), (71, 386355), (129, 212645), (213, 128785), (215, 127587), (355, 77271), (599, 45795), (645, 42529), (1065, 25757), (1797, 15265), (2995, 9159), (3053, 8985)]