21916856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210739}}^1$

素因数の和:210758

約数の個数: 16

約数和(自身を含む): 44255400

約数和(自身を除く): 22338544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210739, 421478, 842956, 1685912, 2739607, 5479214, 10958428, 21916856]

約数ペア:

[(1, 21916856), (2, 10958428), (4, 5479214), (8, 2739607), (13, 1685912), (26, 842956), (52, 421478), (104, 210739)]