21373845

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 36702720

約数和(自身を除く): 15328875

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1061, 1185, 1343, 3183, 4029, 5305, 6715, 15915, 18037, 20145, 54111, 83819, 90185, 251457, 270555, 419095, 1257285, 1424923, 4274769, 7124615, 21373845]

約数ペア:

[(1, 21373845), (3, 7124615), (5, 4274769), (15, 1424923), (17, 1257285), (51, 419095), (79, 270555), (85, 251457), (237, 90185), (255, 83819), (395, 54111), (1061, 20145), (1185, 18037), (1343, 15915), (3183, 6715), (4029, 5305)]