21323640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13669}}^1$

素因数の和:13696

約数の個数: 64

約数和(自身を含む): 68896800

約数和(自身を除く): 47573160

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, 13669, 27338, 41007, 54676, 68345, 82014, 109352, 136690, 164028, 177697, 205035, 273380, 328056, 355394, 410070, 533091, 546760, 710788, 820140, 888485, 1066182, 1421576, 1640280, 1776970, 2132364, 2665455, 3553940, 4264728, 5330910, 7107880, 10661820, 21323640]

約数ペア:

[(1, 21323640), (2, 10661820), (3, 7107880), (4, 5330910), (5, 4264728), (6, 3553940), (8, 2665455), (10, 2132364), (12, 1776970), (13, 1640280), (15, 1421576), (20, 1066182), (24, 888485), (26, 820140), (30, 710788), (39, 546760), (40, 533091), (52, 410070), (60, 355394), (65, 328056), (78, 273380), (104, 205035), (120, 177697), (130, 164028), (156, 136690), (195, 109352), (260, 82014), (312, 68345), (390, 54676), (520, 41007), (780, 27338), (1560, 13669)]