20995696

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30517}}^1$

素因数の和:30568

約数の個数: 20

約数和(自身を含む): 41626552

約数和(自身を除く): 20630856

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30517, 61034, 122068, 244136, 488272, 1312231, 2624462, 5248924, 10497848, 20995696]

約数ペア:

[(1, 20995696), (2, 10497848), (4, 5248924), (8, 2624462), (16, 1312231), (43, 488272), (86, 244136), (172, 122068), (344, 61034), (688, 30517)]