19678245

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{17971}}^1$

素因数の和:18052

約数の個数: 16

約数和(自身を含む): 31918272

約数和(自身を除く): 12240027

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 17971, 53913, 89855, 269565, 1311883, 3935649, 6559415, 19678245]

約数ペア:

[(1, 19678245), (3, 6559415), (5, 3935649), (15, 1311883), (73, 269565), (219, 89855), (365, 53913), (1095, 17971)]