20813625

素因数分解:

$3^3\times 5^3\times 7^1\times {\mathrm{881}}^1$

素因数の和:912

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 23215815

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 189, 225, 315, 375, 525, 675, 875, 881, 945, 1125, 1575, 2625, 2643, 3375, 4405, 4725, 6167, 7875, 7929, 13215, 18501, 22025, 23625, 23787, 30835, 39645, 55503, 66075, 92505, 110125, 118935, 154175, 166509, 198225, 277515, 330375, 462525, 594675, 770875, 832545, 991125, 1387575, 2312625, 2973375, 4162725, 6937875, 20813625]

約数ペア:

[(1, 20813625), (3, 6937875), (5, 4162725), (7, 2973375), (9, 2312625), (15, 1387575), (21, 991125), (25, 832545), (27, 770875), (35, 594675), (45, 462525), (63, 330375), (75, 277515), (105, 198225), (125, 166509), (135, 154175), (175, 118935), (189, 110125), (225, 92505), (315, 66075), (375, 55503), (525, 39645), (675, 30835), (875, 23787), (881, 23625), (945, 22025), (1125, 18501), (1575, 13215), (2625, 7929), (2643, 7875), (3375, 6167), (4405, 4725)]