31688216

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{991}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 68090880

約数和(自身を除く): 36402664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 991, 1142, 1982, 2284, 3964, 3997, 4568, 6937, 7928, 7994, 13874, 15988, 27748, 31976, 55496, 565861, 1131722, 2263444, 3961027, 4526888, 7922054, 15844108, 31688216]

約数ペア:

[(1, 31688216), (2, 15844108), (4, 7922054), (7, 4526888), (8, 3961027), (14, 2263444), (28, 1131722), (56, 565861), (571, 55496), (991, 31976), (1142, 27748), (1982, 15988), (2284, 13874), (3964, 7994), (3997, 7928), (4568, 6937)]