21987825

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{4969}}^1$

素因数の和:5041

約数の個数: 24

約数和(自身を含む): 36976800

約数和(自身を除く): 14988975

約数列:

[1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425, 4969, 14907, 24845, 74535, 124225, 293171, 372675, 879513, 1465855, 4397565, 7329275, 21987825]

約数ペア:

[(1, 21987825), (3, 7329275), (5, 4397565), (15, 1465855), (25, 879513), (59, 372675), (75, 293171), (177, 124225), (295, 74535), (885, 24845), (1475, 14907), (4425, 4969)]