21190585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 8226887

約数列:

[1, 5, 13, 17, 65, 85, 127, 151, 221, 635, 755, 1105, 1651, 1963, 2159, 2567, 8255, 9815, 10795, 12835, 19177, 28067, 33371, 95885, 140335, 166855, 249301, 326009, 1246505, 1630045, 4238117, 21190585]

約数ペア:

[(1, 21190585), (5, 4238117), (13, 1630045), (17, 1246505), (65, 326009), (85, 249301), (127, 166855), (151, 140335), (221, 95885), (635, 33371), (755, 28067), (1105, 19177), (1651, 12835), (1963, 10795), (2159, 9815), (2567, 8255)]