20686204

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1429}}^1$

素因数の和:1498

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 25439876

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 154, 188, 308, 329, 517, 658, 1034, 1316, 1429, 2068, 2858, 3619, 5716, 7238, 10003, 14476, 15719, 20006, 31438, 40012, 62876, 67163, 110033, 134326, 220066, 268652, 440132, 470141, 738793, 940282, 1477586, 1880564, 2955172, 5171551, 10343102, 20686204]

約数ペア:

[(1, 20686204), (2, 10343102), (4, 5171551), (7, 2955172), (11, 1880564), (14, 1477586), (22, 940282), (28, 738793), (44, 470141), (47, 440132), (77, 268652), (94, 220066), (154, 134326), (188, 110033), (308, 67163), (329, 62876), (517, 40012), (658, 31438), (1034, 20006), (1316, 15719), (1429, 14476), (2068, 10003), (2858, 7238), (3619, 5716)]