21046275

素因数分解:

$3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1051}}^1$

素因数の和:1156

約数の個数: 36

約数和(自身を含む): 38156040

約数和(自身を除く): 17109765

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 89, 225, 267, 445, 801, 1051, 1335, 2225, 3153, 4005, 5255, 6675, 9459, 15765, 20025, 26275, 47295, 78825, 93539, 236475, 280617, 467695, 841851, 1403085, 2338475, 4209255, 7015425, 21046275]

約数ペア:

[(1, 21046275), (3, 7015425), (5, 4209255), (9, 2338475), (15, 1403085), (25, 841851), (45, 467695), (75, 280617), (89, 236475), (225, 93539), (267, 78825), (445, 47295), (801, 26275), (1051, 20025), (1335, 15765), (2225, 9459), (3153, 6675), (4005, 5255)]