21415401

素因数分解:

$3^3\times 7^2\times {\mathrm{16187}}^1$

素因数の和:16210

約数の個数: 24

約数和(自身を含む): 36908640

約数和(自身を除く): 15493239

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16187, 48561, 113309, 145683, 339927, 437049, 793163, 1019781, 2379489, 3059343, 7138467, 21415401]

約数ペア:

[(1, 21415401), (3, 7138467), (7, 3059343), (9, 2379489), (21, 1019781), (27, 793163), (49, 437049), (63, 339927), (147, 145683), (189, 113309), (441, 48561), (1323, 16187)]