19911510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221239}}^1$

素因数の和:221252

約数の個数: 24

約数和(自身を含む): 51770160

約数和(自身を除く): 31858650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221239, 442478, 663717, 1106195, 1327434, 1991151, 2212390, 3318585, 3982302, 6637170, 9955755, 19911510]

約数ペア:

[(1, 19911510), (2, 9955755), (3, 6637170), (5, 3982302), (6, 3318585), (9, 2212390), (10, 1991151), (15, 1327434), (18, 1106195), (30, 663717), (45, 442478), (90, 221239)]