2157165

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 4180800

約数和(自身を除く): 2023635

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 45, 57, 87, 95, 135, 145, 171, 261, 285, 435, 513, 551, 783, 841, 855, 1305, 1653, 2523, 2565, 2755, 3915, 4205, 4959, 7569, 8265, 12615, 14877, 15979, 22707, 24795, 37845, 47937, 74385, 79895, 113535, 143811, 239685, 431433, 719055, 2157165]

約数ペア:

[(1, 2157165), (3, 719055), (5, 431433), (9, 239685), (15, 143811), (19, 113535), (27, 79895), (29, 74385), (45, 47937), (57, 37845), (87, 24795), (95, 22707), (135, 15979), (145, 14877), (171, 12615), (261, 8265), (285, 7569), (435, 4959), (513, 4205), (551, 3915), (783, 2755), (841, 2565), (855, 2523), (1305, 1653)]