21555711

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1583}}^1$

素因数の和:1695

約数の個数: 24

約数和(自身を含む): 33359040

約数和(自身を除く): 11803329

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 1583, 4539, 4749, 13617, 14247, 26911, 80733, 140887, 242199, 422661, 1267983, 2395079, 7185237, 21555711]

約数ペア:

[(1, 21555711), (3, 7185237), (9, 2395079), (17, 1267983), (51, 422661), (89, 242199), (153, 140887), (267, 80733), (801, 26911), (1513, 14247), (1583, 13617), (4539, 4749)]