21500435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{907}}^1$

素因数の和:1354

約数の個数: 16

約数和(自身を含む): 28242432

約数和(自身を除く): 6741997

約数列:

[1, 5, 11, 55, 431, 907, 2155, 4535, 4741, 9977, 23705, 49885, 390917, 1954585, 4300087, 21500435]

約数ペア:

[(1, 21500435), (5, 4300087), (11, 1954585), (55, 390917), (431, 49885), (907, 23705), (2155, 9977), (4535, 4741)]