21610290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55411}}^1$

素因数の和:55434

約数の個数: 32

約数和(自身を含む): 55855296

約数和(自身を除く): 34245006

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55411, 110822, 166233, 277055, 332466, 554110, 720343, 831165, 1440686, 1662330, 2161029, 3601715, 4322058, 7203430, 10805145, 21610290]

約数ペア:

[(1, 21610290), (2, 10805145), (3, 7203430), (5, 4322058), (6, 3601715), (10, 2161029), (13, 1662330), (15, 1440686), (26, 831165), (30, 720343), (39, 554110), (65, 332466), (78, 277055), (130, 166233), (195, 110822), (390, 55411)]