21900375

素因数分解:

$3^5\times 5^3\times 7^1\times {\mathrm{103}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 47244288

約数和(自身を除く): 25343913

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 103, 105, 125, 135, 175, 189, 225, 243, 309, 315, 375, 405, 515, 525, 567, 675, 721, 875, 927, 945, 1125, 1215, 1545, 1575, 1701, 2025, 2163, 2575, 2625, 2781, 2835, 3375, 3605, 4635, 4725, 6075, 6489, 7725, 7875, 8343, 8505, 10125, 10815, 12875, 13905, 14175, 18025, 19467, 23175, 23625, 25029, 30375, 32445, 38625, 41715, 42525, 54075, 58401, 69525, 70875, 90125, 97335, 115875, 125145, 162225, 175203, 208575, 212625, 270375, 292005, 347625, 486675, 625725, 811125, 876015, 1042875, 1460025, 2433375, 3128625, 4380075, 7300125, 21900375]

約数ペア:

[(1, 21900375), (3, 7300125), (5, 4380075), (7, 3128625), (9, 2433375), (15, 1460025), (21, 1042875), (25, 876015), (27, 811125), (35, 625725), (45, 486675), (63, 347625), (75, 292005), (81, 270375), (103, 212625), (105, 208575), (125, 175203), (135, 162225), (175, 125145), (189, 115875), (225, 97335), (243, 90125), (309, 70875), (315, 69525), (375, 58401), (405, 54075), (515, 42525), (525, 41715), (567, 38625), (675, 32445), (721, 30375), (875, 25029), (927, 23625), (945, 23175), (1125, 19467), (1215, 18025), (1545, 14175), (1575, 13905), (1701, 12875), (2025, 10815), (2163, 10125), (2575, 8505), (2625, 8343), (2781, 7875), (2835, 7725), (3375, 6489), (3605, 6075), (4635, 4725)]