143318721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30881}}^1$

素因数の和:30921

約数の個数: 32

約数和(自身を含む): 249032448

約数和(自身を除く): 105713727

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 30881, 92643, 216167, 401453, 524977, 648501, 1204359, 1574931, 2810171, 3674839, 6824701, 8430513, 11024517, 20474103, 47772907, 143318721]

約数ペア:

[(1, 143318721), (3, 47772907), (7, 20474103), (13, 11024517), (17, 8430513), (21, 6824701), (39, 3674839), (51, 2810171), (91, 1574931), (119, 1204359), (221, 648501), (273, 524977), (357, 401453), (663, 216167), (1547, 92643), (4641, 30881)]