647432811

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{32803}}^1$

素因数の和:32872

約数の個数: 32

約数和(自身を含む): 1039230720

約数和(自身を除く): 391797909

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 1161, 2193, 6579, 19737, 32803, 98409, 295227, 557651, 885681, 1410529, 1672953, 4231587, 5018859, 12694761, 15056577, 23978993, 38084283, 71936979, 215810937, 647432811]

約数ペア:

[(1, 647432811), (3, 215810937), (9, 71936979), (17, 38084283), (27, 23978993), (43, 15056577), (51, 12694761), (129, 5018859), (153, 4231587), (387, 1672953), (459, 1410529), (731, 885681), (1161, 557651), (2193, 295227), (6579, 98409), (19737, 32803)]