2051973

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 60

約数和(自身を含む): 3972672

約数和(自身を除く): 1920699

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 47, 49, 63, 77, 81, 99, 141, 147, 189, 231, 297, 329, 423, 441, 517, 539, 567, 693, 891, 987, 1269, 1323, 1551, 1617, 2079, 2303, 2961, 3619, 3807, 3969, 4653, 4851, 6237, 6909, 8883, 10857, 13959, 14553, 20727, 25333, 26649, 32571, 41877, 43659, 62181, 75999, 97713, 186543, 227997, 293139, 683991, 2051973]

約数ペア:

[(1, 2051973), (3, 683991), (7, 293139), (9, 227997), (11, 186543), (21, 97713), (27, 75999), (33, 62181), (47, 43659), (49, 41877), (63, 32571), (77, 26649), (81, 25333), (99, 20727), (141, 14553), (147, 13959), (189, 10857), (231, 8883), (297, 6909), (329, 6237), (423, 4851), (441, 4653), (517, 3969), (539, 3807), (567, 3619), (693, 2961), (891, 2303), (987, 2079), (1269, 1617), (1323, 1551)]