18579385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 26625024

約数和(自身を除く): 8045639

約数列:

[1, 5, 11, 17, 31, 55, 85, 155, 187, 341, 527, 641, 935, 1705, 2635, 3205, 5797, 7051, 10897, 19871, 28985, 35255, 54485, 99355, 119867, 218581, 337807, 599335, 1092905, 1689035, 3715877, 18579385]

約数ペア:

[(1, 18579385), (5, 3715877), (11, 1689035), (17, 1092905), (31, 599335), (55, 337807), (85, 218581), (155, 119867), (187, 99355), (341, 54485), (527, 35255), (641, 28985), (935, 19871), (1705, 10897), (2635, 7051), (3205, 5797)]