21597920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5869}}^1$

素因数の和:5907

約数の個数: 48

約数和(自身を含む): 53252640

約数和(自身を除く): 31654720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5869, 11738, 23476, 29345, 46952, 58690, 93904, 117380, 134987, 187808, 234760, 269974, 469520, 539948, 674935, 939040, 1079896, 1349870, 2159792, 2699740, 4319584, 5399480, 10798960, 21597920]

約数ペア:

[(1, 21597920), (2, 10798960), (4, 5399480), (5, 4319584), (8, 2699740), (10, 2159792), (16, 1349870), (20, 1079896), (23, 939040), (32, 674935), (40, 539948), (46, 469520), (80, 269974), (92, 234760), (115, 187808), (160, 134987), (184, 117380), (230, 93904), (368, 58690), (460, 46952), (736, 29345), (920, 23476), (1840, 11738), (3680, 5869)]