21695085

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5417}}^1$

素因数の和:5517

約数の個数: 24

約数和(自身を含む): 38034360

約数和(自身を除く): 16339275

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5417, 16251, 27085, 48753, 81255, 243765, 482113, 1446339, 2410565, 4339017, 7231695, 21695085]

約数ペア:

[(1, 21695085), (3, 7231695), (5, 4339017), (9, 2410565), (15, 1446339), (45, 482113), (89, 243765), (267, 81255), (445, 48753), (801, 27085), (1335, 16251), (4005, 5417)]