21205798

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{599}}^1$

素因数の和:1203

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 11741402

約数列:

[1, 2, 31, 62, 571, 599, 1142, 1198, 17701, 18569, 35402, 37138, 342029, 684058, 10602899, 21205798]

約数ペア:

[(1, 21205798), (2, 10602899), (31, 684058), (62, 342029), (571, 37138), (599, 35402), (1142, 18569), (1198, 17701)]