18908475

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{4133}}^1$

素因数の和:4207

約数の個数: 24

約数和(自身を含む): 31782192

約数和(自身を除く): 12873717

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 915, 1525, 4133, 4575, 12399, 20665, 61995, 103325, 252113, 309975, 756339, 1260565, 3781695, 6302825, 18908475]

約数ペア:

[(1, 18908475), (3, 6302825), (5, 3781695), (15, 1260565), (25, 756339), (61, 309975), (75, 252113), (183, 103325), (305, 61995), (915, 20665), (1525, 12399), (4133, 4575)]