90209427

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16979}}^1$

素因数の和:17023

約数の個数: 32

約数和(自身を含む): 156487680

約数和(自身を除く): 66278253

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 5313, 16979, 50937, 118853, 186769, 356559, 390517, 560307, 1171551, 1307383, 2733619, 3922149, 4295687, 8200857, 12887061, 30069809, 90209427]

約数ペア:

[(1, 90209427), (3, 30069809), (7, 12887061), (11, 8200857), (21, 4295687), (23, 3922149), (33, 2733619), (69, 1307383), (77, 1171551), (161, 560307), (231, 390517), (253, 356559), (483, 186769), (759, 118853), (1771, 50937), (5313, 16979)]