21086730

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3719}}^1$

素因数の和:3745

約数の個数: 80

約数和(自身を含む): 64817280

約数和(自身を除く): 43730550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3719, 5670, 7438, 11157, 18595, 22314, 26033, 33471, 37190, 52066, 55785, 66942, 78099, 100413, 111570, 130165, 156198, 167355, 200826, 234297, 260330, 301239, 334710, 390495, 468594, 502065, 602478, 702891, 780990, 1004130, 1171485, 1405782, 1506195, 2108673, 2342970, 3012390, 3514455, 4217346, 7028910, 10543365, 21086730]

約数ペア:

[(1, 21086730), (2, 10543365), (3, 7028910), (5, 4217346), (6, 3514455), (7, 3012390), (9, 2342970), (10, 2108673), (14, 1506195), (15, 1405782), (18, 1171485), (21, 1004130), (27, 780990), (30, 702891), (35, 602478), (42, 502065), (45, 468594), (54, 390495), (63, 334710), (70, 301239), (81, 260330), (90, 234297), (105, 200826), (126, 167355), (135, 156198), (162, 130165), (189, 111570), (210, 100413), (270, 78099), (315, 66942), (378, 55785), (405, 52066), (567, 37190), (630, 33471), (810, 26033), (945, 22314), (1134, 18595), (1890, 11157), (2835, 7438), (3719, 5670)]