199679487

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{557}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 312694272

約数和(自身を除く): 113014785

約数列:

[1, 3, 7, 21, 43, 129, 301, 397, 557, 903, 1191, 1671, 2779, 3899, 8337, 11697, 17071, 23951, 51213, 71853, 119497, 167657, 221129, 358491, 502971, 663387, 1547903, 4643709, 9508547, 28525641, 66559829, 199679487]

約数ペア:

[(1, 199679487), (3, 66559829), (7, 28525641), (21, 9508547), (43, 4643709), (129, 1547903), (301, 663387), (397, 502971), (557, 358491), (903, 221129), (1191, 167657), (1671, 119497), (2779, 71853), (3899, 51213), (8337, 23951), (11697, 17071)]