21945627

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3889}}^1$

素因数の和:3928

約数の個数: 32

約数和(自身を含む): 37344000

約数和(自身を除く): 15398373

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 171, 209, 297, 513, 627, 1881, 3889, 5643, 11667, 35001, 42779, 73891, 105003, 128337, 221673, 385011, 665019, 812801, 1155033, 1995057, 2438403, 7315209, 21945627]

約数ペア:

[(1, 21945627), (3, 7315209), (9, 2438403), (11, 1995057), (19, 1155033), (27, 812801), (33, 665019), (57, 385011), (99, 221673), (171, 128337), (209, 105003), (297, 73891), (513, 42779), (627, 35001), (1881, 11667), (3889, 5643)]