221738751

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{26693}}^1$

素因数の和:26783

約数の個数: 24

約数和(自身を含む): 349798176

約数和(自身を除く): 128059425

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 26693, 80079, 240237, 347009, 1041027, 1895203, 3123081, 5685609, 17056827, 24637639, 73912917, 221738751]

約数ペア:

[(1, 221738751), (3, 73912917), (9, 24637639), (13, 17056827), (39, 5685609), (71, 3123081), (117, 1895203), (213, 1041027), (639, 347009), (923, 240237), (2769, 80079), (8307, 26693)]