388521747

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 607875840

約数和(自身を除く): 219354093

約数列:

[1, 3, 9, 19, 53, 57, 159, 163, 171, 263, 477, 489, 789, 1007, 1467, 2367, 3021, 3097, 4997, 8639, 9063, 9291, 13939, 14991, 25917, 27873, 41817, 42869, 44973, 77751, 125451, 128607, 164141, 264841, 385821, 492423, 794523, 814511, 1477269, 2272057, 2383569, 2443533, 6816171, 7330599, 20448513, 43169083, 129507249, 388521747]

約数ペア:

[(1, 388521747), (3, 129507249), (9, 43169083), (19, 20448513), (53, 7330599), (57, 6816171), (159, 2443533), (163, 2383569), (171, 2272057), (263, 1477269), (477, 814511), (489, 794523), (789, 492423), (1007, 385821), (1467, 264841), (2367, 164141), (3021, 128607), (3097, 125451), (4997, 77751), (8639, 44973), (9063, 42869), (9291, 41817), (13939, 27873), (14991, 25917)]