21239630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 40906944

約数和(自身を除く): 19667314

約数列:

[1, 2, 5, 10, 17, 34, 85, 103, 170, 206, 515, 1030, 1213, 1751, 2426, 3502, 6065, 8755, 12130, 17510, 20621, 41242, 103105, 124939, 206210, 249878, 624695, 1249390, 2123963, 4247926, 10619815, 21239630]

約数ペア:

[(1, 21239630), (2, 10619815), (5, 4247926), (10, 2123963), (17, 1249390), (34, 624695), (85, 249878), (103, 206210), (170, 124939), (206, 103105), (515, 41242), (1030, 20621), (1213, 17510), (1751, 12130), (2426, 8755), (3502, 6065)]