21796010

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53161}}^1$

素因数の和:53209

約数の個数: 16

約数和(自身を含む): 40190472

約数和(自身を除く): 18394462

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53161, 106322, 265805, 531610, 2179601, 4359202, 10898005, 21796010]

約数ペア:

[(1, 21796010), (2, 10898005), (5, 4359202), (10, 2179601), (41, 531610), (82, 265805), (205, 106322), (410, 53161)]