21000064

素因数分解:

$2^7\times {\mathrm{359}}^1\times {\mathrm{457}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 42044400

約数和(自身を除く): 21044336

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 359, 457, 718, 914, 1436, 1828, 2872, 3656, 5744, 7312, 11488, 14624, 22976, 29248, 45952, 58496, 164063, 328126, 656252, 1312504, 2625008, 5250016, 10500032, 21000064]

約数ペア:

[(1, 21000064), (2, 10500032), (4, 5250016), (8, 2625008), (16, 1312504), (32, 656252), (64, 328126), (128, 164063), (359, 58496), (457, 45952), (718, 29248), (914, 22976), (1436, 14624), (1828, 11488), (2872, 7312), (3656, 5744)]