72828369

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 111408000

約数和(自身を除く): 38579631

約数列:

[1, 3, 9, 27, 43, 129, 149, 387, 421, 447, 1161, 1263, 1341, 3789, 4023, 6407, 11367, 18103, 19221, 54309, 57663, 62729, 162927, 172989, 188187, 488781, 564561, 1693683, 2697347, 8092041, 24276123, 72828369]

約数ペア:

[(1, 72828369), (3, 24276123), (9, 8092041), (27, 2697347), (43, 1693683), (129, 564561), (149, 488781), (387, 188187), (421, 172989), (447, 162927), (1161, 62729), (1263, 57663), (1341, 54309), (3789, 19221), (4023, 18103), (6407, 11367)]