21373317

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3359}}^1$

素因数の和:3473

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 14269563

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3359, 6363, 10077, 23513, 30231, 70539, 211617, 339259, 1017777, 2374813, 3053331, 7124439, 21373317]

約数ペア:

[(1, 21373317), (3, 7124439), (7, 3053331), (9, 2374813), (21, 1017777), (63, 339259), (101, 211617), (303, 70539), (707, 30231), (909, 23513), (2121, 10077), (3359, 6363)]