19156917787

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{7933}}^1$

素因数の和:8299

約数の個数: 32

約数和(自身を含む): 23361758208

約数和(自身を除く): 4204840421

約数列:

[1, 7, 23, 53, 161, 283, 371, 1219, 1981, 6509, 7933, 8533, 14999, 45563, 55531, 104993, 182459, 344977, 420449, 1277213, 2245039, 2414839, 2943143, 9670327, 15715273, 51635897, 67692289, 118987067, 361451279, 832909469, 2736702541, 19156917787]

約数ペア:

[(1, 19156917787), (7, 2736702541), (23, 832909469), (53, 361451279), (161, 118987067), (283, 67692289), (371, 51635897), (1219, 15715273), (1981, 9670327), (6509, 2943143), (7933, 2414839), (8533, 2245039), (14999, 1277213), (45563, 420449), (55531, 344977), (104993, 182459)]