21968386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 16445054

約数列:

[1, 2, 11, 17, 22, 34, 151, 187, 302, 374, 389, 778, 1661, 2567, 3322, 4279, 5134, 6613, 8558, 13226, 28237, 56474, 58739, 72743, 117478, 145486, 646129, 998563, 1292258, 1997126, 10984193, 21968386]

約数ペア:

[(1, 21968386), (2, 10984193), (11, 1997126), (17, 1292258), (22, 998563), (34, 646129), (151, 145486), (187, 117478), (302, 72743), (374, 58739), (389, 56474), (778, 28237), (1661, 13226), (2567, 8558), (3322, 6613), (4279, 5134)]