21096621

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25759}}^1$

素因数の和:25785

約数の個数: 24

約数和(自身を含む): 37506560

約数和(自身を除く): 16409939

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25759, 77277, 180313, 231831, 334867, 540939, 1004601, 1622817, 2344069, 3013803, 7032207, 21096621]

約数ペア:

[(1, 21096621), (3, 7032207), (7, 3013803), (9, 2344069), (13, 1622817), (21, 1004601), (39, 540939), (63, 334867), (91, 231831), (117, 180313), (273, 77277), (819, 25759)]