215896401

素因数分解:

$3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3079}}^1$

素因数の和:3155

約数の個数: 48

約数和(自身を含む): 379209600

約数和(自身を除く): 163313199

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 147, 159, 189, 371, 441, 477, 1113, 1323, 1431, 2597, 3079, 3339, 7791, 9237, 10017, 21553, 23373, 27711, 64659, 70119, 83133, 150871, 163187, 193977, 452613, 489561, 581931, 1142309, 1357839, 1468683, 3426927, 4073517, 4406049, 7996163, 10280781, 23988489, 30842343, 71965467, 215896401]

約数ペア:

[(1, 215896401), (3, 71965467), (7, 30842343), (9, 23988489), (21, 10280781), (27, 7996163), (49, 4406049), (53, 4073517), (63, 3426927), (147, 1468683), (159, 1357839), (189, 1142309), (371, 581931), (441, 489561), (477, 452613), (1113, 193977), (1323, 163187), (1431, 150871), (2597, 83133), (3079, 70119), (3339, 64659), (7791, 27711), (9237, 23373), (10017, 21553)]