21396370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2927}}^1$

素因数の和:2994

約数の個数: 32

約数和(自身を含む): 41741568

約数和(自身を除く): 20345198

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2927, 3655, 5854, 7310, 14635, 29270, 49759, 99518, 125861, 248795, 251722, 497590, 629305, 1258610, 2139637, 4279274, 10698185, 21396370]

約数ペア:

[(1, 21396370), (2, 10698185), (5, 4279274), (10, 2139637), (17, 1258610), (34, 629305), (43, 497590), (85, 251722), (86, 248795), (170, 125861), (215, 99518), (430, 49759), (731, 29270), (1462, 14635), (2927, 7310), (3655, 5854)]