21042900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:350

約数の個数: 108

約数和(自身を含む): 66891552

約数和(自身を除く): 45848652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 103, 150, 180, 206, 225, 227, 300, 309, 412, 450, 454, 515, 618, 681, 900, 908, 927, 1030, 1135, 1236, 1362, 1545, 1854, 2043, 2060, 2270, 2575, 2724, 3090, 3405, 3708, 4086, 4540, 4635, 5150, 5675, 6180, 6810, 7725, 8172, 9270, 10215, 10300, 11350, 13620, 15450, 17025, 18540, 20430, 22700, 23175, 23381, 30900, 34050, 40860, 46350, 46762, 51075, 68100, 70143, 92700, 93524, 102150, 116905, 140286, 204300, 210429, 233810, 280572, 350715, 420858, 467620, 584525, 701430, 841716, 1052145, 1169050, 1402860, 1753575, 2104290, 2338100, 3507150, 4208580, 5260725, 7014300, 10521450, 21042900]

約数ペア:

[(1, 21042900), (2, 10521450), (3, 7014300), (4, 5260725), (5, 4208580), (6, 3507150), (9, 2338100), (10, 2104290), (12, 1753575), (15, 1402860), (18, 1169050), (20, 1052145), (25, 841716), (30, 701430), (36, 584525), (45, 467620), (50, 420858), (60, 350715), (75, 280572), (90, 233810), (100, 210429), (103, 204300), (150, 140286), (180, 116905), (206, 102150), (225, 93524), (227, 92700), (300, 70143), (309, 68100), (412, 51075), (450, 46762), (454, 46350), (515, 40860), (618, 34050), (681, 30900), (900, 23381), (908, 23175), (927, 22700), (1030, 20430), (1135, 18540), (1236, 17025), (1362, 15450), (1545, 13620), (1854, 11350), (2043, 10300), (2060, 10215), (2270, 9270), (2575, 8172), (2724, 7725), (3090, 6810), (3405, 6180), (3708, 5675), (4086, 5150), (4540, 4635)]