21797545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5147}}^1$

素因数の和:5181

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 11067287

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5147, 25735, 36029, 56617, 180145, 283085, 396319, 622787, 1981595, 3113935, 4359509, 21797545]

約数ペア:

[(1, 21797545), (5, 4359509), (7, 3113935), (11, 1981595), (35, 622787), (55, 396319), (77, 283085), (121, 180145), (385, 56617), (605, 36029), (847, 25735), (4235, 5147)]