18887121

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3347}}^1$

素因数の和:3386

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 13253679

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 171, 209, 297, 513, 627, 1881, 3347, 5643, 10041, 30123, 36817, 63593, 90369, 110451, 190779, 331353, 572337, 699523, 994059, 1717011, 2098569, 6295707, 18887121]

約数ペア:

[(1, 18887121), (3, 6295707), (9, 2098569), (11, 1717011), (19, 994059), (27, 699523), (33, 572337), (57, 331353), (99, 190779), (171, 110451), (209, 90369), (297, 63593), (513, 36817), (627, 30123), (1881, 10041), (3347, 5643)]