21800584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209621}}^1$

素因数の和:209640

約数の個数: 16

約数和(自身を含む): 44020620

約数和(自身を除く): 22220036

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209621, 419242, 838484, 1676968, 2725073, 5450146, 10900292, 21800584]

約数ペア:

[(1, 21800584), (2, 10900292), (4, 5450146), (8, 2725073), (13, 1676968), (26, 838484), (52, 419242), (104, 209621)]