20277351

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 33446400

約数和(自身を除く): 13169049

約数列:

[1, 3, 9, 19, 27, 29, 47, 57, 87, 141, 171, 261, 423, 513, 551, 783, 841, 893, 1269, 1363, 1653, 2523, 2679, 4089, 4959, 7569, 8037, 12267, 14877, 15979, 22707, 24111, 25897, 36801, 39527, 47937, 77691, 118581, 143811, 233073, 355743, 431433, 699219, 751013, 1067229, 2253039, 6759117, 20277351]

約数ペア:

[(1, 20277351), (3, 6759117), (9, 2253039), (19, 1067229), (27, 751013), (29, 699219), (47, 431433), (57, 355743), (87, 233073), (141, 143811), (171, 118581), (261, 77691), (423, 47937), (513, 39527), (551, 36801), (783, 25897), (841, 24111), (893, 22707), (1269, 15979), (1363, 14877), (1653, 12267), (2523, 8037), (2679, 7569), (4089, 4959)]