18859672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4423}}^1$

素因数の和:4483

約数の個数: 32

約数和(自身を含む): 39019680

約数和(自身を除く): 20160008

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4423, 8846, 17692, 35384, 57499, 114998, 181343, 229996, 362686, 459992, 725372, 1450744, 2357459, 4714918, 9429836, 18859672]

約数ペア:

[(1, 18859672), (2, 9429836), (4, 4714918), (8, 2357459), (13, 1450744), (26, 725372), (41, 459992), (52, 362686), (82, 229996), (104, 181343), (164, 114998), (328, 57499), (533, 35384), (1066, 17692), (2132, 8846), (4264, 4423)]