21648030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 33613410

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 163, 190, 233, 285, 326, 466, 489, 570, 699, 815, 978, 1165, 1398, 1630, 2330, 2445, 3097, 3495, 4427, 4890, 6194, 6990, 8854, 9291, 13281, 15485, 18582, 22135, 26562, 30970, 37979, 44270, 46455, 66405, 75958, 92910, 113937, 132810, 189895, 227874, 379790, 569685, 721601, 1139370, 1443202, 2164803, 3608005, 4329606, 7216010, 10824015, 21648030]

約数ペア:

[(1, 21648030), (2, 10824015), (3, 7216010), (5, 4329606), (6, 3608005), (10, 2164803), (15, 1443202), (19, 1139370), (30, 721601), (38, 569685), (57, 379790), (95, 227874), (114, 189895), (163, 132810), (190, 113937), (233, 92910), (285, 75958), (326, 66405), (466, 46455), (489, 44270), (570, 37979), (699, 30970), (815, 26562), (978, 22135), (1165, 18582), (1398, 15485), (1630, 13281), (2330, 9291), (2445, 8854), (3097, 6990), (3495, 6194), (4427, 4890)]