205014915

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{216947}}^1$

素因数の和:216968

約数の個数: 32

約数和(自身を含む): 416540160

約数和(自身を除く): 211525245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 216947, 650841, 1084735, 1518629, 1952523, 3254205, 4555887, 5857569, 7593145, 9762615, 13667661, 22779435, 29287845, 41002983, 68338305, 205014915]

約数ペア:

[(1, 205014915), (3, 68338305), (5, 41002983), (7, 29287845), (9, 22779435), (15, 13667661), (21, 9762615), (27, 7593145), (35, 5857569), (45, 4555887), (63, 3254205), (105, 1952523), (135, 1518629), (189, 1084735), (315, 650841), (945, 216947)]