21813272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209743}}^1$

素因数の和:209762

約数の個数: 16

約数和(自身を含む): 44046240

約数和(自身を除く): 22232968

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209743, 419486, 838972, 1677944, 2726659, 5453318, 10906636, 21813272]

約数ペア:

[(1, 21813272), (2, 10906636), (4, 5453318), (8, 2726659), (13, 1677944), (26, 838972), (52, 419486), (104, 209743)]