21479861

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 25603200

約数和(自身を除く): 4123339

約数列:

[1, 13, 19, 23, 199, 247, 299, 361, 437, 2587, 3781, 4577, 4693, 5681, 8303, 49153, 59501, 71839, 86963, 107939, 933907, 1130519, 1652297, 21479861]

約数ペア:

[(1, 21479861), (13, 1652297), (19, 1130519), (23, 933907), (199, 107939), (247, 86963), (299, 71839), (361, 59501), (437, 49153), (2587, 8303), (3781, 5681), (4577, 4693)]