18159687

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 34944000

約数和(自身を除く): 16784313

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 91, 117, 133, 171, 189, 247, 273, 351, 389, 399, 513, 741, 819, 1167, 1197, 1729, 2223, 2457, 2723, 3501, 3591, 5057, 5187, 6669, 7391, 8169, 10503, 15171, 15561, 22173, 24507, 35399, 45513, 46683, 51737, 66519, 73521, 96083, 106197, 136539, 155211, 199557, 288249, 318591, 465633, 672581, 864747, 955773, 1396899, 2017743, 2594241, 6053229, 18159687]

約数ペア:

[(1, 18159687), (3, 6053229), (7, 2594241), (9, 2017743), (13, 1396899), (19, 955773), (21, 864747), (27, 672581), (39, 465633), (57, 318591), (63, 288249), (91, 199557), (117, 155211), (133, 136539), (171, 106197), (189, 96083), (247, 73521), (273, 66519), (351, 51737), (389, 46683), (399, 45513), (513, 35399), (741, 24507), (819, 22173), (1167, 15561), (1197, 15171), (1729, 10503), (2223, 8169), (2457, 7391), (2723, 6669), (3501, 5187), (3591, 5057)]