201821841

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 344736000

約数和(自身を除く): 142914159

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 149, 153, 221, 227, 351, 447, 459, 663, 681, 1341, 1937, 1989, 2043, 2533, 2951, 3859, 4023, 5811, 5967, 6129, 7599, 8853, 11577, 17433, 22797, 26559, 32929, 33823, 34731, 50167, 52299, 68391, 79677, 98787, 101469, 104193, 150501, 296361, 304407, 439699, 451503, 574991, 889083, 913221, 1319097, 1354509, 1724973, 3957291, 5174919, 7474883, 11871873, 15524757, 22424649, 67273947, 201821841]

約数ペア:

[(1, 201821841), (3, 67273947), (9, 22424649), (13, 15524757), (17, 11871873), (27, 7474883), (39, 5174919), (51, 3957291), (117, 1724973), (149, 1354509), (153, 1319097), (221, 913221), (227, 889083), (351, 574991), (447, 451503), (459, 439699), (663, 304407), (681, 296361), (1341, 150501), (1937, 104193), (1989, 101469), (2043, 98787), (2533, 79677), (2951, 68391), (3859, 52299), (4023, 50167), (5811, 34731), (5967, 33823), (6129, 32929), (7599, 26559), (8853, 22797), (11577, 17433)]