21550010

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52561}}^1$

素因数の和:52609

約数の個数: 16

約数和(自身を含む): 39736872

約数和(自身を除く): 18186862

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52561, 105122, 262805, 525610, 2155001, 4310002, 10775005, 21550010]

約数ペア:

[(1, 21550010), (2, 10775005), (5, 4310002), (10, 2155001), (41, 525610), (82, 262805), (205, 105122), (410, 52561)]