205120521

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{733}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 329771520

約数和(自身を除く): 124650999

約数列:

[1, 3, 9, 17, 31, 51, 59, 93, 153, 177, 279, 527, 531, 733, 1003, 1581, 1829, 2199, 3009, 4743, 5487, 6597, 9027, 12461, 16461, 22723, 31093, 37383, 43247, 68169, 93279, 112149, 129741, 204507, 279837, 386291, 389223, 735199, 1158873, 1340657, 2205597, 3476619, 4021971, 6616791, 12065913, 22791169, 68373507, 205120521]

約数ペア:

[(1, 205120521), (3, 68373507), (9, 22791169), (17, 12065913), (31, 6616791), (51, 4021971), (59, 3476619), (93, 2205597), (153, 1340657), (177, 1158873), (279, 735199), (527, 389223), (531, 386291), (733, 279837), (1003, 204507), (1581, 129741), (1829, 112149), (2199, 93279), (3009, 68169), (4743, 43247), (5487, 37383), (6597, 31093), (9027, 22723), (12461, 16461)]