20459998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 35280000

約数和(自身を除く): 14820002

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 247, 494, 499, 998, 1079, 1577, 2158, 3154, 6487, 9481, 12974, 18962, 20501, 41002, 41417, 82834, 123253, 246506, 538421, 786923, 1076842, 1573846, 10229999, 20459998]

約数ペア:

[(1, 20459998), (2, 10229999), (13, 1573846), (19, 1076842), (26, 786923), (38, 538421), (83, 246506), (166, 123253), (247, 82834), (494, 41417), (499, 41002), (998, 20501), (1079, 18962), (1577, 12974), (2158, 9481), (3154, 6487)]