20850182703

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{645137}}^1$

素因数の和:645178

約数の個数: 48

約数和(自身を含む): 37572837120

約数和(自身を除く): 16722654417

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 243, 399, 513, 567, 1197, 1539, 1701, 3591, 4617, 10773, 32319, 645137, 1935411, 4515959, 5806233, 12257603, 13547877, 17418699, 36772809, 40643631, 52256097, 85803221, 110318427, 121930893, 156768291, 257409663, 330955281, 365792679, 772228989, 992865843, 1097378037, 2316686967, 2978597529, 6950060901, 20850182703]

約数ペア:

[(1, 20850182703), (3, 6950060901), (7, 2978597529), (9, 2316686967), (19, 1097378037), (21, 992865843), (27, 772228989), (57, 365792679), (63, 330955281), (81, 257409663), (133, 156768291), (171, 121930893), (189, 110318427), (243, 85803221), (399, 52256097), (513, 40643631), (567, 36772809), (1197, 17418699), (1539, 13547877), (1701, 12257603), (3591, 5806233), (4617, 4515959), (10773, 1935411), (32319, 645137)]