21678212735

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{52957}}^1$

素因数の和:53151

約数の個数: 32

約数和(自身を含む): 28470220800

約数和(自身を除く): 6792008065

約数列:

[1, 5, 19, 31, 95, 139, 155, 589, 695, 2641, 2945, 4309, 13205, 21545, 52957, 81871, 264785, 409355, 1006183, 1641667, 5030915, 7361023, 8208335, 31191673, 36805115, 139859437, 155958365, 228191713, 699297185, 1140958565, 4335642547, 21678212735]

約数ペア:

[(1, 21678212735), (5, 4335642547), (19, 1140958565), (31, 699297185), (95, 228191713), (139, 155958365), (155, 139859437), (589, 36805115), (695, 31191673), (2641, 8208335), (2945, 7361023), (4309, 5030915), (13205, 1641667), (21545, 1006183), (52957, 409355), (81871, 264785)]