19804804

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{613}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 35742168

約数和(自身を除く): 15937364

約数列:

[1, 2, 4, 41, 82, 164, 197, 394, 613, 788, 1226, 2452, 8077, 16154, 25133, 32308, 50266, 100532, 120761, 241522, 483044, 4951201, 9902402, 19804804]

約数ペア:

[(1, 19804804), (2, 9902402), (4, 4951201), (41, 483044), (82, 241522), (164, 120761), (197, 100532), (394, 50266), (613, 32308), (788, 25133), (1226, 16154), (2452, 8077)]