21165850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{673}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 42874488

約数和(自身を除く): 21708638

約数列:

[1, 2, 5, 10, 17, 25, 34, 37, 50, 74, 85, 170, 185, 370, 425, 629, 673, 850, 925, 1258, 1346, 1850, 3145, 3365, 6290, 6730, 11441, 15725, 16825, 22882, 24901, 31450, 33650, 49802, 57205, 114410, 124505, 249010, 286025, 423317, 572050, 622525, 846634, 1245050, 2116585, 4233170, 10582925, 21165850]

約数ペア:

[(1, 21165850), (2, 10582925), (5, 4233170), (10, 2116585), (17, 1245050), (25, 846634), (34, 622525), (37, 572050), (50, 423317), (74, 286025), (85, 249010), (170, 124505), (185, 114410), (370, 57205), (425, 49802), (629, 33650), (673, 31450), (850, 24901), (925, 22882), (1258, 16825), (1346, 15725), (1850, 11441), (3145, 6730), (3365, 6290)]