21272625

素因数分解:

$3^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{191}}^1$

素因数の和:229

約数の個数: 80

約数和(自身を含む): 43490304

約数和(自身を除く): 22217679

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 125, 135, 165, 191, 225, 275, 297, 375, 405, 495, 573, 675, 825, 891, 955, 1125, 1375, 1485, 1719, 2025, 2101, 2475, 2865, 3375, 4125, 4455, 4775, 5157, 6303, 7425, 8595, 10125, 10505, 12375, 14325, 15471, 18909, 22275, 23875, 25785, 31515, 37125, 42975, 52525, 56727, 71625, 77355, 94545, 111375, 128925, 157575, 170181, 214875, 262625, 283635, 386775, 472725, 644625, 787875, 850905, 1418175, 1933875, 2363625, 4254525, 7090875, 21272625]

約数ペア:

[(1, 21272625), (3, 7090875), (5, 4254525), (9, 2363625), (11, 1933875), (15, 1418175), (25, 850905), (27, 787875), (33, 644625), (45, 472725), (55, 386775), (75, 283635), (81, 262625), (99, 214875), (125, 170181), (135, 157575), (165, 128925), (191, 111375), (225, 94545), (275, 77355), (297, 71625), (375, 56727), (405, 52525), (495, 42975), (573, 37125), (675, 31515), (825, 25785), (891, 23875), (955, 22275), (1125, 18909), (1375, 15471), (1485, 14325), (1719, 12375), (2025, 10505), (2101, 10125), (2475, 8595), (2865, 7425), (3375, 6303), (4125, 5157), (4455, 4775)]