21543816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128237}}^1$

素因数の和:128253

約数の個数: 32

約数和(自身を含む): 61554240

約数和(自身を除く): 40010424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128237, 256474, 384711, 512948, 769422, 897659, 1025896, 1538844, 1795318, 2692977, 3077688, 3590636, 5385954, 7181272, 10771908, 21543816]

約数ペア:

[(1, 21543816), (2, 10771908), (3, 7181272), (4, 5385954), (6, 3590636), (7, 3077688), (8, 2692977), (12, 1795318), (14, 1538844), (21, 1025896), (24, 897659), (28, 769422), (42, 512948), (56, 384711), (84, 256474), (168, 128237)]