20644904

素因数分解:

$2^3\times 7^1\times {\mathrm{487}}^1\times {\mathrm{757}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 44388480

約数和(自身を除く): 23743576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 487, 757, 974, 1514, 1948, 3028, 3409, 3896, 5299, 6056, 6818, 10598, 13636, 21196, 27272, 42392, 368659, 737318, 1474636, 2580613, 2949272, 5161226, 10322452, 20644904]

約数ペア:

[(1, 20644904), (2, 10322452), (4, 5161226), (7, 2949272), (8, 2580613), (14, 1474636), (28, 737318), (56, 368659), (487, 42392), (757, 27272), (974, 21196), (1514, 13636), (1948, 10598), (3028, 6818), (3409, 6056), (3896, 5299)]