21622275

素因数分解:

$3^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 40235520

約数和(自身を除く): 18613245

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 103, 135, 225, 309, 311, 515, 675, 927, 933, 1545, 1555, 2575, 2781, 2799, 4635, 4665, 7725, 7775, 8397, 13905, 13995, 23175, 23325, 32033, 41985, 69525, 69975, 96099, 160165, 209925, 288297, 480495, 800825, 864891, 1441485, 2402475, 4324455, 7207425, 21622275]

約数ペア:

[(1, 21622275), (3, 7207425), (5, 4324455), (9, 2402475), (15, 1441485), (25, 864891), (27, 800825), (45, 480495), (75, 288297), (103, 209925), (135, 160165), (225, 96099), (309, 69975), (311, 69525), (515, 41985), (675, 32033), (927, 23325), (933, 23175), (1545, 13995), (1555, 13905), (2575, 8397), (2781, 7775), (2799, 7725), (4635, 4665)]