20919389

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 22471680

約数和(自身を除く): 1552291

約数列:

[1, 31, 41, 109, 151, 1271, 3379, 4469, 4681, 6191, 16459, 138539, 191921, 510229, 674819, 20919389]

約数ペア:

[(1, 20919389), (31, 674819), (41, 510229), (109, 191921), (151, 138539), (1271, 16459), (3379, 6191), (4469, 4681)]