21467260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 48275136

約数和(自身を除く): 26807876

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 613, 1030, 1226, 1751, 2060, 2452, 3065, 3502, 6130, 7004, 8755, 10421, 12260, 17510, 20842, 35020, 41684, 52105, 63139, 104210, 126278, 208420, 252556, 315695, 631390, 1073363, 1262780, 2146726, 4293452, 5366815, 10733630, 21467260]

約数ペア:

[(1, 21467260), (2, 10733630), (4, 5366815), (5, 4293452), (10, 2146726), (17, 1262780), (20, 1073363), (34, 631390), (68, 315695), (85, 252556), (103, 208420), (170, 126278), (206, 104210), (340, 63139), (412, 52105), (515, 41684), (613, 35020), (1030, 20842), (1226, 17510), (1751, 12260), (2060, 10421), (2452, 8755), (3065, 7004), (3502, 6130)]