20155713

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 29187648

約数和(自身を除く): 9031935

約数列:

[1, 3, 19, 37, 57, 111, 361, 503, 703, 1083, 1509, 2109, 9557, 13357, 18611, 28671, 40071, 55833, 181583, 353609, 544749, 1060827, 6718571, 20155713]

約数ペア:

[(1, 20155713), (3, 6718571), (19, 1060827), (37, 544749), (57, 353609), (111, 181583), (361, 55833), (503, 40071), (703, 28671), (1083, 18611), (1509, 13357), (2109, 9557)]