18436712

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4637}}^1$

素因数の和:4721

約数の個数: 32

約数和(自身を含む): 40072320

約数和(自身を除く): 21635608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 4637, 9274, 18548, 32459, 37096, 64918, 129836, 259672, 329227, 658454, 1316908, 2304589, 2633816, 4609178, 9218356, 18436712]

約数ペア:

[(1, 18436712), (2, 9218356), (4, 4609178), (7, 2633816), (8, 2304589), (14, 1316908), (28, 658454), (56, 329227), (71, 259672), (142, 129836), (284, 64918), (497, 37096), (568, 32459), (994, 18548), (1988, 9274), (3976, 4637)]