21315141

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 31505760

約数和(自身を除く): 10190619

約数列:

[1, 3, 9, 101, 131, 179, 303, 393, 537, 909, 1179, 1611, 13231, 18079, 23449, 39693, 54237, 70347, 119079, 162711, 211041, 2368349, 7105047, 21315141]

約数ペア:

[(1, 21315141), (3, 7105047), (9, 2368349), (101, 211041), (131, 162711), (179, 119079), (303, 70347), (393, 54237), (537, 39693), (909, 23449), (1179, 18079), (1611, 13231)]