20887075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{503}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 28498176

約数和(自身を除く): 7611101

約数列:

[1, 5, 11, 25, 55, 151, 275, 503, 755, 1661, 2515, 3775, 5533, 8305, 12575, 27665, 41525, 75953, 138325, 379765, 835483, 1898825, 4177415, 20887075]

約数ペア:

[(1, 20887075), (5, 4177415), (11, 1898825), (25, 835483), (55, 379765), (151, 138325), (275, 75953), (503, 41525), (755, 27665), (1661, 12575), (2515, 8305), (3775, 5533)]