21929960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 53660880

約数和(自身を除く): 31730920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 233, 260, 362, 466, 520, 724, 905, 932, 1165, 1448, 1810, 1864, 2330, 2353, 3029, 3620, 4660, 4706, 6058, 7240, 9320, 9412, 11765, 12116, 15145, 18824, 23530, 24232, 30290, 42173, 47060, 60580, 84346, 94120, 121160, 168692, 210865, 337384, 421730, 548249, 843460, 1096498, 1686920, 2192996, 2741245, 4385992, 5482490, 10964980, 21929960]

約数ペア:

[(1, 21929960), (2, 10964980), (4, 5482490), (5, 4385992), (8, 2741245), (10, 2192996), (13, 1686920), (20, 1096498), (26, 843460), (40, 548249), (52, 421730), (65, 337384), (104, 210865), (130, 168692), (181, 121160), (233, 94120), (260, 84346), (362, 60580), (466, 47060), (520, 42173), (724, 30290), (905, 24232), (932, 23530), (1165, 18824), (1448, 15145), (1810, 12116), (1864, 11765), (2330, 9412), (2353, 9320), (3029, 7240), (3620, 6058), (4660, 4706)]