21051430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1097}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 40318560

約数和(自身を除く): 19267130

約数列:

[1, 2, 5, 10, 19, 38, 95, 101, 190, 202, 505, 1010, 1097, 1919, 2194, 3838, 5485, 9595, 10970, 19190, 20843, 41686, 104215, 110797, 208430, 221594, 553985, 1107970, 2105143, 4210286, 10525715, 21051430]

約数ペア:

[(1, 21051430), (2, 10525715), (5, 4210286), (10, 2105143), (19, 1107970), (38, 553985), (95, 221594), (101, 208430), (190, 110797), (202, 104215), (505, 41686), (1010, 20843), (1097, 19190), (1919, 10970), (2194, 9595), (3838, 5485)]