19019540

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4507}}^1$

素因数の和:4727

約数の個数: 24

約数和(自身を含む): 40139232

約数和(自身を除く): 21119692

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4507, 9014, 18028, 22535, 45070, 90140, 950977, 1901954, 3803908, 4754885, 9509770, 19019540]

約数ペア:

[(1, 19019540), (2, 9509770), (4, 4754885), (5, 3803908), (10, 1901954), (20, 950977), (211, 90140), (422, 45070), (844, 22535), (1055, 18028), (2110, 9014), (4220, 4507)]