20630666

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1607}}^1$

素因数の和:1754

約数の個数: 24

約数和(自身を含む): 36295776

約数和(自身を除く): 15665110

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1607, 1834, 3214, 6419, 11249, 12838, 22498, 78743, 157486, 210517, 421034, 1473619, 2947238, 10315333, 20630666]

約数ペア:

[(1, 20630666), (2, 10315333), (7, 2947238), (14, 1473619), (49, 421034), (98, 210517), (131, 157486), (262, 78743), (917, 22498), (1607, 12838), (1834, 11249), (3214, 6419)]