20291404

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 43932672

約数和(自身を除く): 23641268

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 68, 94, 119, 188, 238, 329, 476, 658, 799, 907, 1316, 1598, 1814, 3196, 3628, 5593, 6349, 11186, 12698, 15419, 22372, 25396, 30838, 42629, 61676, 85258, 107933, 170516, 215866, 298403, 431732, 596806, 724693, 1193612, 1449386, 2898772, 5072851, 10145702, 20291404]

約数ペア:

[(1, 20291404), (2, 10145702), (4, 5072851), (7, 2898772), (14, 1449386), (17, 1193612), (28, 724693), (34, 596806), (47, 431732), (68, 298403), (94, 215866), (119, 170516), (188, 107933), (238, 85258), (329, 61676), (476, 42629), (658, 30838), (799, 25396), (907, 22372), (1316, 15419), (1598, 12698), (1814, 11186), (3196, 6349), (3628, 5593)]