21931598

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 39508560

約数和(自身を除く): 17576962

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 59, 118, 221, 377, 442, 493, 754, 767, 841, 986, 1003, 1534, 1682, 1711, 2006, 3422, 6409, 10933, 12818, 13039, 14297, 21866, 22243, 26078, 28594, 29087, 44486, 49619, 58174, 99238, 185861, 371722, 378131, 645047, 756262, 843523, 1290094, 1687046, 10965799, 21931598]

約数ペア:

[(1, 21931598), (2, 10965799), (13, 1687046), (17, 1290094), (26, 843523), (29, 756262), (34, 645047), (58, 378131), (59, 371722), (118, 185861), (221, 99238), (377, 58174), (442, 49619), (493, 44486), (754, 29087), (767, 28594), (841, 26078), (986, 22243), (1003, 21866), (1534, 14297), (1682, 13039), (1711, 12818), (2006, 10933), (3422, 6409)]