28663275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22481}}^1$

素因数の和:22511

約数の個数: 24

約数和(自身を含む): 50179824

約数和(自身を除く): 21516549

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22481, 67443, 112405, 337215, 382177, 562025, 1146531, 1686075, 1910885, 5732655, 9554425, 28663275]

約数ペア:

[(1, 28663275), (3, 9554425), (5, 5732655), (15, 1910885), (17, 1686075), (25, 1146531), (51, 562025), (75, 382177), (85, 337215), (255, 112405), (425, 67443), (1275, 22481)]