21670416

素因数分解:

$2^4\times 3^4\times {\mathrm{23}}^1\times {\mathrm{727}}^1$

素因数の和:770

約数の個数: 100

約数和(自身を含む): 65537472

約数和(自身を除く): 43867056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 36, 46, 48, 54, 69, 72, 81, 92, 108, 138, 144, 162, 184, 207, 216, 276, 324, 368, 414, 432, 552, 621, 648, 727, 828, 1104, 1242, 1296, 1454, 1656, 1863, 2181, 2484, 2908, 3312, 3726, 4362, 4968, 5816, 6543, 7452, 8724, 9936, 11632, 13086, 14904, 16721, 17448, 19629, 26172, 29808, 33442, 34896, 39258, 50163, 52344, 58887, 66884, 78516, 100326, 104688, 117774, 133768, 150489, 157032, 200652, 235548, 267536, 300978, 314064, 401304, 451467, 471096, 601956, 802608, 902934, 942192, 1203912, 1354401, 1805868, 2407824, 2708802, 3611736, 5417604, 7223472, 10835208, 21670416]

約数ペア:

[(1, 21670416), (2, 10835208), (3, 7223472), (4, 5417604), (6, 3611736), (8, 2708802), (9, 2407824), (12, 1805868), (16, 1354401), (18, 1203912), (23, 942192), (24, 902934), (27, 802608), (36, 601956), (46, 471096), (48, 451467), (54, 401304), (69, 314064), (72, 300978), (81, 267536), (92, 235548), (108, 200652), (138, 157032), (144, 150489), (162, 133768), (184, 117774), (207, 104688), (216, 100326), (276, 78516), (324, 66884), (368, 58887), (414, 52344), (432, 50163), (552, 39258), (621, 34896), (648, 33442), (727, 29808), (828, 26172), (1104, 19629), (1242, 17448), (1296, 16721), (1454, 14904), (1656, 13086), (1863, 11632), (2181, 9936), (2484, 8724), (2908, 7452), (3312, 6543), (3726, 5816), (4362, 4968)]