21384225

素因数分解:

$3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{941}}^1$

素因数の和:1058

約数の個数: 36

約数和(自身を含む): 38721852

約数和(自身を除く): 17337627

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 101, 225, 303, 505, 909, 941, 1515, 2525, 2823, 4545, 4705, 7575, 8469, 14115, 22725, 23525, 42345, 70575, 95041, 211725, 285123, 475205, 855369, 1425615, 2376025, 4276845, 7128075, 21384225]

約数ペア:

[(1, 21384225), (3, 7128075), (5, 4276845), (9, 2376025), (15, 1425615), (25, 855369), (45, 475205), (75, 285123), (101, 211725), (225, 95041), (303, 70575), (505, 42345), (909, 23525), (941, 22725), (1515, 14115), (2525, 8469), (2823, 7575), (4545, 4705)]