21031485

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1459}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 34794720

約数和(自身を除く): 13763235

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 961, 1459, 2883, 4377, 4805, 7295, 14415, 21885, 45229, 135687, 226145, 678435, 1402099, 4206297, 7010495, 21031485]

約数ペア:

[(1, 21031485), (3, 7010495), (5, 4206297), (15, 1402099), (31, 678435), (93, 226145), (155, 135687), (465, 45229), (961, 21885), (1459, 14415), (2883, 7295), (4377, 4805)]