19904475

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6473}}^1$

素因数の和:6527

約数の個数: 24

約数和(自身を含む): 33716592

約数和(自身を除く): 13812117

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6473, 19419, 32365, 97095, 161825, 265393, 485475, 796179, 1326965, 3980895, 6634825, 19904475]

約数ペア:

[(1, 19904475), (3, 6634825), (5, 3980895), (15, 1326965), (25, 796179), (41, 485475), (75, 265393), (123, 161825), (205, 97095), (615, 32365), (1025, 19419), (3075, 6473)]