21000339398

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{971}}^1\times {\mathrm{251483}}^1$

素因数の和:252499

約数の個数: 16

約数和(自身を含む): 32266403136

約数和(自身を除く): 11266063738

約数列:

[1, 2, 43, 86, 971, 1942, 41753, 83506, 251483, 502966, 10813769, 21627538, 244189993, 488379986, 10500169699, 21000339398]

約数ペア:

[(1, 21000339398), (2, 10500169699), (43, 488379986), (86, 244189993), (971, 21627538), (1942, 10813769), (41753, 502966), (83506, 251483)]