21002170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1523}}^1$

素因数の和:1734

約数の個数: 32

約数和(自身を含む): 43452288

約数和(自身を除く): 22450118

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1523, 1970, 2758, 3046, 6895, 7615, 10661, 13790, 15230, 21322, 53305, 106610, 300031, 600062, 1500155, 2100217, 3000310, 4200434, 10501085, 21002170]

約数ペア:

[(1, 21002170), (2, 10501085), (5, 4200434), (7, 3000310), (10, 2100217), (14, 1500155), (35, 600062), (70, 300031), (197, 106610), (394, 53305), (985, 21322), (1379, 15230), (1523, 13790), (1970, 10661), (2758, 7615), (3046, 6895)]