21122075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3823}}^1$

素因数の和:3863

約数の個数: 24

約数和(自身を含む): 29873088

約数和(自身を除く): 8751013

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3823, 5525, 19115, 49699, 64991, 95575, 248495, 324955, 844883, 1242475, 1624775, 4224415, 21122075]

約数ペア:

[(1, 21122075), (5, 4224415), (13, 1624775), (17, 1242475), (25, 844883), (65, 324955), (85, 248495), (221, 95575), (325, 64991), (425, 49699), (1105, 19115), (3823, 5525)]