20852685

素因数分解:

$3^2\times 5^1\times 7^4\times {\mathrm{193}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 42384732

約数和(自身を除く): 21532047

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 193, 245, 315, 343, 441, 579, 735, 965, 1029, 1351, 1715, 1737, 2205, 2401, 2895, 3087, 4053, 5145, 6755, 7203, 8685, 9457, 12005, 12159, 15435, 20265, 21609, 28371, 36015, 47285, 60795, 66199, 85113, 108045, 141855, 198597, 330995, 425565, 463393, 595791, 992985, 1390179, 2316965, 2978955, 4170537, 6950895, 20852685]

約数ペア:

[(1, 20852685), (3, 6950895), (5, 4170537), (7, 2978955), (9, 2316965), (15, 1390179), (21, 992985), (35, 595791), (45, 463393), (49, 425565), (63, 330995), (105, 198597), (147, 141855), (193, 108045), (245, 85113), (315, 66199), (343, 60795), (441, 47285), (579, 36015), (735, 28371), (965, 21609), (1029, 20265), (1351, 15435), (1715, 12159), (1737, 12005), (2205, 9457), (2401, 8685), (2895, 7203), (3087, 6755), (4053, 5145)]