21139937273

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{34513}}^1$

素因数の和:34713

約数の個数: 32

約数和(自身を含む): 26718806016

約数和(自身を除く): 5578868743

約数列:

[1, 7, 13, 53, 91, 127, 371, 689, 889, 1651, 4823, 6731, 11557, 34513, 47117, 87503, 241591, 448669, 612521, 1829189, 3140683, 4383151, 12804323, 23779457, 30682057, 56980963, 166456199, 232307003, 398866741, 1626149021, 3019991039, 21139937273]

約数ペア:

[(1, 21139937273), (7, 3019991039), (13, 1626149021), (53, 398866741), (91, 232307003), (127, 166456199), (371, 56980963), (689, 30682057), (889, 23779457), (1651, 12804323), (4823, 4383151), (6731, 3140683), (11557, 1829189), (34513, 612521), (47117, 448669), (87503, 241591)]