21955830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2963}}^1$

素因数の和:3005

約数の個数: 64

約数和(自身を含む): 59754240

約数和(自身を除く): 37798410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2963, 3705, 5926, 7410, 8889, 14815, 17778, 29630, 38519, 44445, 56297, 77038, 88890, 112594, 115557, 168891, 192595, 231114, 281485, 337782, 385190, 562970, 577785, 731861, 844455, 1155570, 1463722, 1688910, 2195583, 3659305, 4391166, 7318610, 10977915, 21955830]

約数ペア:

[(1, 21955830), (2, 10977915), (3, 7318610), (5, 4391166), (6, 3659305), (10, 2195583), (13, 1688910), (15, 1463722), (19, 1155570), (26, 844455), (30, 731861), (38, 577785), (39, 562970), (57, 385190), (65, 337782), (78, 281485), (95, 231114), (114, 192595), (130, 168891), (190, 115557), (195, 112594), (247, 88890), (285, 77038), (390, 56297), (494, 44445), (570, 38519), (741, 29630), (1235, 17778), (1482, 14815), (2470, 8889), (2963, 7410), (3705, 5926)]