21000514870

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2131}}^1\times {\mathrm{16703}}^1$

素因数の和:18900

約数の個数: 32

約数和(自身を含む): 38461962240

約数和(自身を除く): 17461447370

約数列:

[1, 2, 5, 10, 59, 118, 295, 590, 2131, 4262, 10655, 16703, 21310, 33406, 83515, 125729, 167030, 251458, 628645, 985477, 1257290, 1970954, 4927385, 9854770, 35594093, 71188186, 177970465, 355940930, 2100051487, 4200102974, 10500257435, 21000514870]

約数ペア:

[(1, 21000514870), (2, 10500257435), (5, 4200102974), (10, 2100051487), (59, 355940930), (118, 177970465), (295, 71188186), (590, 35594093), (2131, 9854770), (4262, 4927385), (10655, 1970954), (16703, 1257290), (21310, 985477), (33406, 628645), (83515, 251458), (125729, 167030)]