21857444

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 47319552

約数和(自身を除く): 25462108

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 68, 94, 119, 188, 238, 329, 476, 658, 799, 977, 1316, 1598, 1954, 3196, 3908, 5593, 6839, 11186, 13678, 16609, 22372, 27356, 33218, 45919, 66436, 91838, 116263, 183676, 232526, 321433, 465052, 642866, 780623, 1285732, 1561246, 3122492, 5464361, 10928722, 21857444]

約数ペア:

[(1, 21857444), (2, 10928722), (4, 5464361), (7, 3122492), (14, 1561246), (17, 1285732), (28, 780623), (34, 642866), (47, 465052), (68, 321433), (94, 232526), (119, 183676), (188, 116263), (238, 91838), (329, 66436), (476, 45919), (658, 33218), (799, 27356), (977, 22372), (1316, 16609), (1598, 13678), (1954, 11186), (3196, 6839), (3908, 5593)]