21034275

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 15630045

約数列:

[1, 3, 5, 15, 25, 31, 75, 83, 93, 109, 155, 249, 327, 415, 465, 545, 775, 1245, 1635, 2075, 2325, 2573, 2725, 3379, 6225, 7719, 8175, 9047, 10137, 12865, 16895, 27141, 38595, 45235, 50685, 64325, 84475, 135705, 192975, 226175, 253425, 280457, 678525, 841371, 1402285, 4206855, 7011425, 21034275]

約数ペア:

[(1, 21034275), (3, 7011425), (5, 4206855), (15, 1402285), (25, 841371), (31, 678525), (75, 280457), (83, 253425), (93, 226175), (109, 192975), (155, 135705), (249, 84475), (327, 64325), (415, 50685), (465, 45235), (545, 38595), (775, 27141), (1245, 16895), (1635, 12865), (2075, 10137), (2325, 9047), (2573, 8175), (2725, 7719), (3379, 6225)]