21552555

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1683

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 15541845

約数列:

[1, 3, 5, 15, 19, 47, 57, 95, 141, 235, 285, 705, 893, 1609, 2679, 4465, 4827, 8045, 13395, 24135, 30571, 75623, 91713, 152855, 226869, 378115, 458565, 1134345, 1436837, 4310511, 7184185, 21552555]

約数ペア:

[(1, 21552555), (3, 7184185), (5, 4310511), (15, 1436837), (19, 1134345), (47, 458565), (57, 378115), (95, 226869), (141, 152855), (235, 91713), (285, 75623), (705, 30571), (893, 24135), (1609, 13395), (2679, 8045), (4465, 4827)]