218540979

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{12841}}^1$

素因数の和:12939

約数の個数: 24

約数和(自身を含む): 331220864

約数和(自身を除く): 112679885

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1891, 5673, 12841, 17019, 38523, 115569, 398071, 783301, 1194213, 2349903, 3582639, 7049709, 24282331, 72846993, 218540979]

約数ペア:

[(1, 218540979), (3, 72846993), (9, 24282331), (31, 7049709), (61, 3582639), (93, 2349903), (183, 1194213), (279, 783301), (549, 398071), (1891, 115569), (5673, 38523), (12841, 17019)]