21952972525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{426893}}^1$

素因数の和:426942

約数の個数: 36

約数和(自身を含む): 31681511316

約数和(自身を除く): 9728538791

約数列:

[1, 5, 11, 17, 25, 55, 85, 121, 187, 275, 425, 605, 935, 2057, 3025, 4675, 10285, 51425, 426893, 2134465, 4695823, 7257181, 10672325, 23479115, 36285905, 51654053, 79828991, 117395575, 181429525, 258270265, 399144955, 878118901, 1291351325, 1995724775, 4390594505, 21952972525]

約数ペア:

[(1, 21952972525), (5, 4390594505), (11, 1995724775), (17, 1291351325), (25, 878118901), (55, 399144955), (85, 258270265), (121, 181429525), (187, 117395575), (275, 79828991), (425, 51654053), (605, 36285905), (935, 23479115), (2057, 10672325), (3025, 7257181), (4675, 4695823), (10285, 2134465), (51425, 426893)]