21595315

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 9249485

約数列:

[1, 5, 7, 35, 41, 101, 149, 205, 287, 505, 707, 745, 1043, 1435, 3535, 4141, 5215, 6109, 15049, 20705, 28987, 30545, 42763, 75245, 105343, 144935, 213815, 526715, 617009, 3085045, 4319063, 21595315]

約数ペア:

[(1, 21595315), (5, 4319063), (7, 3085045), (35, 617009), (41, 526715), (101, 213815), (149, 144935), (205, 105343), (287, 75245), (505, 42763), (707, 30545), (745, 28987), (1043, 20705), (1435, 15049), (3535, 6109), (4141, 5215)]