21974315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{599}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 9129685

約数列:

[1, 5, 11, 23, 29, 55, 115, 145, 253, 319, 599, 667, 1265, 1595, 2995, 3335, 6589, 7337, 13777, 17371, 32945, 36685, 68885, 86855, 151547, 191081, 399533, 757735, 955405, 1997665, 4394863, 21974315]

約数ペア:

[(1, 21974315), (5, 4394863), (11, 1997665), (23, 955405), (29, 757735), (55, 399533), (115, 191081), (145, 151547), (253, 86855), (319, 68885), (599, 36685), (667, 32945), (1265, 17371), (1595, 13777), (2995, 7337), (3335, 6589)]