20399654

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1319}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 15715546

約数列:

[1, 2, 11, 19, 22, 37, 38, 74, 209, 407, 418, 703, 814, 1319, 1406, 2638, 7733, 14509, 15466, 25061, 29018, 48803, 50122, 97606, 275671, 536833, 551342, 927257, 1073666, 1854514, 10199827, 20399654]

約数ペア:

[(1, 20399654), (2, 10199827), (11, 1854514), (19, 1073666), (22, 927257), (37, 551342), (38, 536833), (74, 275671), (209, 97606), (407, 50122), (418, 48803), (703, 29018), (814, 25061), (1319, 15466), (1406, 14509), (2638, 7733)]