21225615

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9013}}^1$

素因数の和:9178

約数の個数: 16

約数和(自身を含む): 34181088

約数和(自身を除く): 12955473

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9013, 27039, 45065, 135195, 1415041, 4245123, 7075205, 21225615]

約数ペア:

[(1, 21225615), (3, 7075205), (5, 4245123), (15, 1415041), (157, 135195), (471, 45065), (785, 27039), (2355, 9013)]