21959805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5157

約数の個数: 32

約数和(自身を含む): 41142528

約数和(自身を除く): 19182723

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 5101, 15303, 25505, 35707, 76515, 107121, 178535, 209141, 535605, 627423, 1045705, 1463987, 3137115, 4391961, 7319935, 21959805]

約数ペア:

[(1, 21959805), (3, 7319935), (5, 4391961), (7, 3137115), (15, 1463987), (21, 1045705), (35, 627423), (41, 535605), (105, 209141), (123, 178535), (205, 107121), (287, 76515), (615, 35707), (861, 25505), (1435, 15303), (4305, 5101)]