21258120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13627}}^1$

素因数の和:13654

約数の個数: 64

約数和(自身を含む): 68685120

約数和(自身を除く): 47427000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13627, 27254, 40881, 54508, 68135, 81762, 109016, 136270, 163524, 177151, 204405, 272540, 327048, 354302, 408810, 531453, 545080, 708604, 817620, 885755, 1062906, 1417208, 1635240, 1771510, 2125812, 2657265, 3543020, 4251624, 5314530, 7086040, 10629060, 21258120]

約数ペア:

[(1, 21258120), (2, 10629060), (3, 7086040), (4, 5314530), (5, 4251624), (6, 3543020), (8, 2657265), (10, 2125812), (12, 1771510), (13, 1635240), (15, 1417208), (20, 1062906), (24, 885755), (26, 817620), (30, 708604), (39, 545080), (40, 531453), (52, 408810), (60, 354302), (65, 327048), (78, 272540), (104, 204405), (120, 177151), (130, 163524), (156, 136270), (195, 109016), (260, 81762), (312, 68135), (390, 54508), (520, 40881), (780, 27254), (1560, 13627)]