21157494

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66533}}^1$

素因数の和:66591

約数の個数: 16

約数和(自身を含む): 43114032

約数和(自身を除く): 21956538

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66533, 133066, 199599, 399198, 3526249, 7052498, 10578747, 21157494]

約数ペア:

[(1, 21157494), (2, 10578747), (3, 7052498), (6, 3526249), (53, 399198), (106, 199599), (159, 133066), (318, 66533)]