21128772

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251533}}^1$

素因数の和:251547

約数の個数: 24

約数和(自身を含む): 56343616

約数和(自身を除く): 35214844

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251533, 503066, 754599, 1006132, 1509198, 1760731, 3018396, 3521462, 5282193, 7042924, 10564386, 21128772]

約数ペア:

[(1, 21128772), (2, 10564386), (3, 7042924), (4, 5282193), (6, 3521462), (7, 3018396), (12, 1760731), (14, 1509198), (21, 1006132), (28, 754599), (42, 503066), (84, 251533)]