1389366139

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{1993}}^1$

素因数の和:2395

約数の個数: 24

約数和(自身を含む): 1661225328

約数和(自身を除く): 271859189

約数列:

[1, 7, 41, 49, 287, 347, 1993, 2009, 2429, 13951, 14227, 17003, 81713, 97657, 99589, 571991, 691571, 697123, 4003937, 4840997, 28354411, 33886979, 198480877, 1389366139]

約数ペア:

[(1, 1389366139), (7, 198480877), (41, 33886979), (49, 28354411), (287, 4840997), (347, 4003937), (1993, 697123), (2009, 691571), (2429, 571991), (13951, 99589), (14227, 97657), (17003, 81713)]