201940221

素因数分解:

$3^1\times 7^3\times {\mathrm{443}}^2$

素因数の和:910

約数の個数: 24

約数和(自身を含む): 314708800

約数和(自身を除く): 112768579

約数列:

[1, 3, 7, 21, 49, 147, 343, 443, 1029, 1329, 3101, 9303, 21707, 65121, 151949, 196249, 455847, 588747, 1373743, 4121229, 9616201, 28848603, 67313407, 201940221]

約数ペア:

[(1, 201940221), (3, 67313407), (7, 28848603), (21, 9616201), (49, 4121229), (147, 1373743), (343, 588747), (443, 455847), (1029, 196249), (1329, 151949), (3101, 65121), (9303, 21707)]