21105693

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8171}}^1$

素因数の和:8225

約数の個数: 24

約数和(自身を含む): 35695296

約数和(自身を除く): 14589603

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8171, 24513, 57197, 73539, 171591, 335011, 514773, 1005033, 2345077, 3015099, 7035231, 21105693]

約数ペア:

[(1, 21105693), (3, 7035231), (7, 3015099), (9, 2345077), (21, 1005033), (41, 514773), (63, 335011), (123, 171591), (287, 73539), (369, 57197), (861, 24513), (2583, 8171)]