6821241

素因数分解:

$3^1\times 7^4\times {\mathrm{947}}^1$

素因数の和:978

約数の個数: 20

約数和(自身を含む): 10621392

約数和(自身を除く): 3800151

約数列:

[1, 3, 7, 21, 49, 147, 343, 947, 1029, 2401, 2841, 6629, 7203, 19887, 46403, 139209, 324821, 974463, 2273747, 6821241]

約数ペア:

[(1, 6821241), (3, 2273747), (7, 974463), (21, 324821), (49, 139209), (147, 46403), (343, 19887), (947, 7203), (1029, 6629), (2401, 2841)]