279842013

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 481766400

約数和(自身を除く): 201924387

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 101, 171, 209, 297, 303, 491, 513, 627, 909, 1111, 1473, 1881, 1919, 2727, 3333, 4419, 5401, 5643, 5757, 9329, 9999, 13257, 16203, 17271, 21109, 27987, 29997, 48609, 49591, 51813, 63327, 83961, 102619, 145827, 148773, 189981, 251883, 307857, 446319, 545501, 569943, 923571, 942229, 1338957, 1636503, 2770713, 2826687, 4909509, 8480061, 10364519, 14728527, 25440183, 31093557, 93280671, 279842013]

約数ペア:

[(1, 279842013), (3, 93280671), (9, 31093557), (11, 25440183), (19, 14728527), (27, 10364519), (33, 8480061), (57, 4909509), (99, 2826687), (101, 2770713), (171, 1636503), (209, 1338957), (297, 942229), (303, 923571), (491, 569943), (513, 545501), (627, 446319), (909, 307857), (1111, 251883), (1473, 189981), (1881, 148773), (1919, 145827), (2727, 102619), (3333, 83961), (4419, 63327), (5401, 51813), (5643, 49591), (5757, 48609), (9329, 29997), (9999, 27987), (13257, 21109), (16203, 17271)]