218492715

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{42467}}^1$

素因数の和:42496

約数の個数: 32

約数和(自身を含む): 407692800

約数和(自身を除く): 189200085

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 42467, 127401, 212335, 297269, 637005, 891807, 1486345, 2080883, 4459035, 6242649, 10404415, 14566181, 31213245, 43698543, 72830905, 218492715]

約数ペア:

[(1, 218492715), (3, 72830905), (5, 43698543), (7, 31213245), (15, 14566181), (21, 10404415), (35, 6242649), (49, 4459035), (105, 2080883), (147, 1486345), (245, 891807), (343, 637005), (735, 297269), (1029, 212335), (1715, 127401), (5145, 42467)]