21115700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12421}}^1$

素因数の和:12452

約数の個数: 36

約数和(自身を含む): 48520332

約数和(自身を除く): 27404632

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12421, 24842, 49684, 62105, 124210, 211157, 248420, 310525, 422314, 621050, 844628, 1055785, 1242100, 2111570, 4223140, 5278925, 10557850, 21115700]

約数ペア:

[(1, 21115700), (2, 10557850), (4, 5278925), (5, 4223140), (10, 2111570), (17, 1242100), (20, 1055785), (25, 844628), (34, 621050), (50, 422314), (68, 310525), (85, 248420), (100, 211157), (170, 124210), (340, 62105), (425, 49684), (850, 24842), (1700, 12421)]