17720402

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9239}}^1$

素因数の和:9385

約数の個数: 16

約数和(自身を含む): 30602880

約数和(自身を除く): 12882478

約数列:

[1, 2, 7, 14, 137, 274, 959, 1918, 9239, 18478, 64673, 129346, 1265743, 2531486, 8860201, 17720402]

約数ペア:

[(1, 17720402), (2, 8860201), (7, 2531486), (14, 1265743), (137, 129346), (274, 64673), (959, 18478), (1918, 9239)]