81206937

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 138902400

約数和(自身を除く): 57695463

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 149, 211, 287, 369, 447, 633, 861, 1043, 1341, 1477, 1899, 2583, 3129, 4431, 6109, 8651, 9387, 13293, 18327, 25953, 31439, 42763, 54981, 60557, 77859, 94317, 128289, 181671, 220073, 282951, 384867, 545013, 660219, 1288999, 1980657, 3866997, 9022993, 11600991, 27068979, 81206937]

約数ペア:

[(1, 81206937), (3, 27068979), (7, 11600991), (9, 9022993), (21, 3866997), (41, 1980657), (63, 1288999), (123, 660219), (149, 545013), (211, 384867), (287, 282951), (369, 220073), (447, 181671), (633, 128289), (861, 94317), (1043, 77859), (1341, 60557), (1477, 54981), (1899, 42763), (2583, 31439), (3129, 25953), (4431, 18327), (6109, 13293), (8651, 9387)]