20411883

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1499}}^1$

素因数の和:1611

約数の個数: 24

約数和(自身を含む): 31590000

約数和(自身を除く): 11178117

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1499, 1513, 4497, 4539, 13491, 13617, 25483, 76449, 133411, 229347, 400233, 1200699, 2267987, 6803961, 20411883]

約数ペア:

[(1, 20411883), (3, 6803961), (9, 2267987), (17, 1200699), (51, 400233), (89, 229347), (153, 133411), (267, 76449), (801, 25483), (1499, 13617), (1513, 13491), (4497, 4539)]