21939847

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 23541760

約数和(自身を除く): 1601913

約数列:

[1, 31, 43, 109, 151, 1333, 3379, 4681, 4687, 6493, 16459, 145297, 201283, 510229, 707737, 21939847]

約数ペア:

[(1, 21939847), (31, 707737), (43, 510229), (109, 201283), (151, 145297), (1333, 16459), (3379, 6493), (4681, 4687)]