19913319

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 9739161

約数列:

[1, 3, 9, 53, 109, 159, 327, 383, 477, 981, 1149, 3447, 5777, 17331, 20299, 41747, 51993, 60897, 125241, 182691, 375723, 2212591, 6637773, 19913319]

約数ペア:

[(1, 19913319), (3, 6637773), (9, 2212591), (53, 375723), (109, 182691), (159, 125241), (327, 60897), (383, 51993), (477, 41747), (981, 20299), (1149, 17331), (3447, 5777)]