19928428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2141}}^1$

素因数の和:2337

約数の個数: 24

約数和(自身を含む): 37784880

約数和(自身を除く): 17856452

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2141, 2327, 4282, 4654, 8564, 9308, 27833, 55666, 111332, 383239, 766478, 1532956, 4982107, 9964214, 19928428]

約数ペア:

[(1, 19928428), (2, 9964214), (4, 4982107), (13, 1532956), (26, 766478), (52, 383239), (179, 111332), (358, 55666), (716, 27833), (2141, 9308), (2327, 8564), (4282, 4654)]