12981315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 21897216

約数和(自身を除く): 8915901

約数列:

[1, 3, 5, 15, 23, 69, 115, 191, 197, 345, 573, 591, 955, 985, 2865, 2955, 4393, 4531, 13179, 13593, 21965, 22655, 37627, 65895, 67965, 112881, 188135, 564405, 865421, 2596263, 4327105, 12981315]

約数ペア:

[(1, 12981315), (3, 4327105), (5, 2596263), (15, 865421), (23, 564405), (69, 188135), (115, 112881), (191, 67965), (197, 65895), (345, 37627), (573, 22655), (591, 21965), (955, 13593), (985, 13179), (2865, 4531), (2955, 4393)]