18998115

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1039}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 13350045

約数列:

[1, 3, 5, 15, 23, 53, 69, 115, 159, 265, 345, 795, 1039, 1219, 3117, 3657, 5195, 6095, 15585, 18285, 23897, 55067, 71691, 119485, 165201, 275335, 358455, 826005, 1266541, 3799623, 6332705, 18998115]

約数ペア:

[(1, 18998115), (3, 6332705), (5, 3799623), (15, 1266541), (23, 826005), (53, 358455), (69, 275335), (115, 165201), (159, 119485), (265, 71691), (345, 55067), (795, 23897), (1039, 18285), (1219, 15585), (3117, 6095), (3657, 5195)]