21368725

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5309}}^1$

素因数の和:5349

約数の個数: 24

約数和(自身を含む): 31605120

約数和(自身を除く): 10236395

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5309, 26545, 37163, 122107, 132725, 185815, 610535, 854749, 929075, 3052675, 4273745, 21368725]

約数ペア:

[(1, 21368725), (5, 4273745), (7, 3052675), (23, 929075), (25, 854749), (35, 610535), (115, 185815), (161, 132725), (175, 122107), (575, 37163), (805, 26545), (4025, 5309)]