21180614

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4013}}^1$

素因数の和:4064

約数の個数: 32

約数和(自身を含む): 40461120

約数和(自身を除く): 19280506

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 4013, 5278, 8026, 28091, 52169, 56182, 104338, 116377, 232754, 365183, 730366, 814639, 1512901, 1629278, 3025802, 10590307, 21180614]

約数ペア:

[(1, 21180614), (2, 10590307), (7, 3025802), (13, 1629278), (14, 1512901), (26, 814639), (29, 730366), (58, 365183), (91, 232754), (182, 116377), (203, 104338), (377, 56182), (406, 52169), (754, 28091), (2639, 8026), (4013, 5278)]