19420695

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20551}}^1$

素因数の和:20572

約数の個数: 32

約数和(自身を含む): 39459840

約数和(自身を除く): 20039145

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20551, 61653, 102755, 143857, 184959, 308265, 431571, 554877, 719285, 924795, 1294713, 2157855, 2774385, 3884139, 6473565, 19420695]

約数ペア:

[(1, 19420695), (3, 6473565), (5, 3884139), (7, 2774385), (9, 2157855), (15, 1294713), (21, 924795), (27, 719285), (35, 554877), (45, 431571), (63, 308265), (105, 184959), (135, 143857), (189, 102755), (315, 61653), (945, 20551)]