21672945

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9829}}^1$

素因数の和:9854

約数の個数: 36

約数和(自身を含む): 43704180

約数和(自身を除く): 22031235

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9829, 29487, 49145, 68803, 88461, 147435, 206409, 344015, 442305, 481621, 619227, 1032045, 1444863, 2408105, 3096135, 4334589, 7224315, 21672945]

約数ペア:

[(1, 21672945), (3, 7224315), (5, 4334589), (7, 3096135), (9, 2408105), (15, 1444863), (21, 1032045), (35, 619227), (45, 481621), (49, 442305), (63, 344015), (105, 206409), (147, 147435), (245, 88461), (315, 68803), (441, 49145), (735, 29487), (2205, 9829)]