20921958215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1\times {\mathrm{1319}}^1$

素因数の和:2279

約数の個数: 32

約数和(自身を含む): 26212032000

約数和(自身を除く): 5290073785

約数列:

[1, 5, 29, 139, 145, 695, 787, 1319, 3935, 4031, 6595, 20155, 22823, 38251, 109393, 114115, 183341, 191255, 546965, 916705, 1038053, 3172397, 5190265, 5316889, 15861985, 26584445, 30103537, 144289367, 150517685, 721446835, 4184391643, 20921958215]

約数ペア:

[(1, 20921958215), (5, 4184391643), (29, 721446835), (139, 150517685), (145, 144289367), (695, 30103537), (787, 26584445), (1319, 15861985), (3935, 5316889), (4031, 5190265), (6595, 3172397), (20155, 1038053), (22823, 916705), (38251, 546965), (109393, 191255), (114115, 183341)]