20952568

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1693}}^1$

素因数の和:1736

約数の個数: 64

約数和(自身を含む): 51226560

約数和(自身を除く): 30273992

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1547, 1693, 1768, 3094, 3386, 6188, 6772, 11851, 12376, 13544, 22009, 23702, 28781, 44018, 47404, 57562, 88036, 94808, 115124, 154063, 176072, 201467, 230248, 308126, 374153, 402934, 616252, 748306, 805868, 1232504, 1496612, 1611736, 2619071, 2993224, 5238142, 10476284, 20952568]

約数ペア:

[(1, 20952568), (2, 10476284), (4, 5238142), (7, 2993224), (8, 2619071), (13, 1611736), (14, 1496612), (17, 1232504), (26, 805868), (28, 748306), (34, 616252), (52, 402934), (56, 374153), (68, 308126), (91, 230248), (104, 201467), (119, 176072), (136, 154063), (182, 115124), (221, 94808), (238, 88036), (364, 57562), (442, 47404), (476, 44018), (728, 28781), (884, 23702), (952, 22009), (1547, 13544), (1693, 12376), (1768, 11851), (3094, 6772), (3386, 6188)]