18404421

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1663}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 30670848

約数和(自身を除く): 12266427

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1581, 1663, 3689, 4989, 11067, 11641, 28271, 34923, 51553, 84813, 154659, 197897, 360871, 593691, 876401, 1082613, 2629203, 6134807, 18404421]

約数ペア:

[(1, 18404421), (3, 6134807), (7, 2629203), (17, 1082613), (21, 876401), (31, 593691), (51, 360871), (93, 197897), (119, 154659), (217, 84813), (357, 51553), (527, 34923), (651, 28271), (1581, 11641), (1663, 11067), (3689, 4989)]