1998909

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 3211104

約数和(自身を除く): 1212195

約数列:

[1, 3, 9, 11, 33, 61, 99, 183, 331, 549, 671, 993, 2013, 2979, 3641, 6039, 10923, 20191, 32769, 60573, 181719, 222101, 666303, 1998909]

約数ペア:

[(1, 1998909), (3, 666303), (9, 222101), (11, 181719), (33, 60573), (61, 32769), (99, 20191), (183, 10923), (331, 6039), (549, 3641), (671, 2979), (993, 2013)]