21190125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{467}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 17650131

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 125, 165, 275, 363, 375, 467, 605, 825, 1375, 1401, 1815, 2335, 3025, 4125, 5137, 7005, 9075, 11675, 15125, 15411, 25685, 35025, 45375, 56507, 58375, 77055, 128425, 169521, 175125, 282535, 385275, 642125, 847605, 1412675, 1926375, 4238025, 7063375, 21190125]

約数ペア:

[(1, 21190125), (3, 7063375), (5, 4238025), (11, 1926375), (15, 1412675), (25, 847605), (33, 642125), (55, 385275), (75, 282535), (121, 175125), (125, 169521), (165, 128425), (275, 77055), (363, 58375), (375, 56507), (467, 45375), (605, 35025), (825, 25685), (1375, 15411), (1401, 15125), (1815, 11675), (2335, 9075), (3025, 7005), (4125, 5137)]