21265048

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8831}}^1$

素因数の和:8887

約数の個数: 32

約数和(自身を含む): 46632960

約数和(自身を除く): 25367912

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8831, 17662, 35324, 61817, 70648, 123634, 247268, 379733, 494536, 759466, 1518932, 2658131, 3037864, 5316262, 10632524, 21265048]

約数ペア:

[(1, 21265048), (2, 10632524), (4, 5316262), (7, 3037864), (8, 2658131), (14, 1518932), (28, 759466), (43, 494536), (56, 379733), (86, 247268), (172, 123634), (301, 70648), (344, 61817), (602, 35324), (1204, 17662), (2408, 8831)]