209920977

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16097}}^1$

素因数の和:16139

約数の個数: 40

約数和(自身を含む): 373988736

約数和(自身を除く): 164067759

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 13041, 16097, 48291, 112679, 144873, 338037, 370231, 434619, 1014111, 1110693, 1303857, 2591617, 3042333, 3332079, 7774851, 9126999, 9996237, 23324553, 29988711, 69973659, 209920977]

約数ペア:

[(1, 209920977), (3, 69973659), (7, 29988711), (9, 23324553), (21, 9996237), (23, 9126999), (27, 7774851), (63, 3332079), (69, 3042333), (81, 2591617), (161, 1303857), (189, 1110693), (207, 1014111), (483, 434619), (567, 370231), (621, 338037), (1449, 144873), (1863, 112679), (4347, 48291), (13041, 16097)]