12721935

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 8567025

約数列:

[1, 3, 5, 15, 31, 93, 109, 155, 251, 327, 465, 545, 753, 1255, 1635, 3379, 3765, 7781, 10137, 16895, 23343, 27359, 38905, 50685, 82077, 116715, 136795, 410385, 848129, 2544387, 4240645, 12721935]

約数ペア:

[(1, 12721935), (3, 4240645), (5, 2544387), (15, 848129), (31, 410385), (93, 136795), (109, 116715), (155, 82077), (251, 50685), (327, 38905), (465, 27359), (545, 23343), (753, 16895), (1255, 10137), (1635, 7781), (3379, 3765)]