21132510147

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1620467}}^1$

素因数の和:1620509

約数の個数: 40

約数和(自身を含む): 37646712576

約数和(自身を除く): 16514202429

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 13041, 1620467, 4861401, 11343269, 14584203, 34029807, 37270741, 43752609, 102089421, 111812223, 131257827, 260895187, 306268263, 335436669, 782685561, 918804789, 1006310007, 2348056683, 3018930021, 7044170049, 21132510147]

約数ペア:

[(1, 21132510147), (3, 7044170049), (7, 3018930021), (9, 2348056683), (21, 1006310007), (23, 918804789), (27, 782685561), (63, 335436669), (69, 306268263), (81, 260895187), (161, 131257827), (189, 111812223), (207, 102089421), (483, 43752609), (567, 37270741), (621, 34029807), (1449, 14584203), (1863, 11343269), (4347, 4861401), (13041, 1620467)]