21855060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5279}}^1$

素因数の和:5317

約数の個数: 72

約数和(自身を含む): 69189120

約数和(自身を除く): 47334060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5279, 10558, 15837, 21116, 26395, 31674, 47511, 52790, 63348, 79185, 95022, 105580, 121417, 158370, 190044, 237555, 242834, 316740, 364251, 475110, 485668, 607085, 728502, 950220, 1092753, 1214170, 1457004, 1821255, 2185506, 2428340, 3642510, 4371012, 5463765, 7285020, 10927530, 21855060]

約数ペア:

[(1, 21855060), (2, 10927530), (3, 7285020), (4, 5463765), (5, 4371012), (6, 3642510), (9, 2428340), (10, 2185506), (12, 1821255), (15, 1457004), (18, 1214170), (20, 1092753), (23, 950220), (30, 728502), (36, 607085), (45, 485668), (46, 475110), (60, 364251), (69, 316740), (90, 242834), (92, 237555), (115, 190044), (138, 158370), (180, 121417), (207, 105580), (230, 95022), (276, 79185), (345, 63348), (414, 52790), (460, 47511), (690, 31674), (828, 26395), (1035, 21116), (1380, 15837), (2070, 10558), (4140, 5279)]