19941272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11279}}^1$

素因数の和:11315

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 22697128

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11279, 22558, 45116, 90232, 146627, 191743, 293254, 383486, 586508, 766972, 1173016, 1533944, 2492659, 4985318, 9970636, 19941272]

約数ペア:

[(1, 19941272), (2, 9970636), (4, 4985318), (8, 2492659), (13, 1533944), (17, 1173016), (26, 766972), (34, 586508), (52, 383486), (68, 293254), (104, 191743), (136, 146627), (221, 90232), (442, 45116), (884, 22558), (1768, 11279)]