19998171

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 32707584

約数和(自身を除く): 12709413

約数列:

[1, 3, 9, 17, 27, 47, 51, 81, 103, 141, 153, 243, 309, 423, 459, 799, 927, 1269, 1377, 1751, 2397, 2781, 3807, 4131, 4841, 5253, 7191, 8343, 11421, 14523, 15759, 21573, 25029, 43569, 47277, 64719, 82297, 130707, 141831, 194157, 246891, 392121, 425493, 740673, 1176363, 2222019, 6666057, 19998171]

約数ペア:

[(1, 19998171), (3, 6666057), (9, 2222019), (17, 1176363), (27, 740673), (47, 425493), (51, 392121), (81, 246891), (103, 194157), (141, 141831), (153, 130707), (243, 82297), (309, 64719), (423, 47277), (459, 43569), (799, 25029), (927, 21573), (1269, 15759), (1377, 14523), (1751, 11421), (2397, 8343), (2781, 7191), (3807, 5253), (4131, 4841)]