21242685

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 36034560

約数和(自身を除く): 14791875

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 919, 1005, 1541, 2757, 4595, 4623, 7705, 13785, 21137, 23115, 61573, 63411, 105685, 184719, 307865, 317055, 923595, 1416179, 4248537, 7080895, 21242685]

約数ペア:

[(1, 21242685), (3, 7080895), (5, 4248537), (15, 1416179), (23, 923595), (67, 317055), (69, 307865), (115, 184719), (201, 105685), (335, 63411), (345, 61573), (919, 23115), (1005, 21137), (1541, 13785), (2757, 7705), (4595, 4623)]