17901620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81371}}^1$

素因数の和:81391

約数の個数: 24

約数和(自身を含む): 41011488

約数和(自身を除く): 23109868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81371, 162742, 325484, 406855, 813710, 895081, 1627420, 1790162, 3580324, 4475405, 8950810, 17901620]

約数ペア:

[(1, 17901620), (2, 8950810), (4, 4475405), (5, 3580324), (10, 1790162), (11, 1627420), (20, 895081), (22, 813710), (44, 406855), (55, 325484), (110, 162742), (220, 81371)]