20653623

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 33401808

約数和(自身を除く): 12748185

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 283, 459, 477, 849, 901, 1377, 1431, 2547, 2703, 4293, 4811, 7641, 8109, 14433, 14999, 22923, 24327, 43299, 44997, 72981, 129897, 134991, 254983, 389691, 404973, 764949, 1214919, 2294847, 6884541, 20653623]

約数ペア:

[(1, 20653623), (3, 6884541), (9, 2294847), (17, 1214919), (27, 764949), (51, 404973), (53, 389691), (81, 254983), (153, 134991), (159, 129897), (283, 72981), (459, 44997), (477, 43299), (849, 24327), (901, 22923), (1377, 14999), (1431, 14433), (2547, 8109), (2703, 7641), (4293, 4811)]