821497187

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{359}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 1002792960

約数和(自身を除く): 181295773

約数列:

[1, 7, 23, 61, 161, 233, 359, 427, 1403, 1631, 2513, 5359, 8257, 9821, 14213, 21899, 37513, 57799, 83647, 99491, 153293, 326899, 503677, 585529, 1923881, 2288293, 3525739, 5102467, 13467167, 35717269, 117356741, 821497187]

約数ペア:

[(1, 821497187), (7, 117356741), (23, 35717269), (61, 13467167), (161, 5102467), (233, 3525739), (359, 2288293), (427, 1923881), (1403, 585529), (1631, 503677), (2513, 326899), (5359, 153293), (8257, 99491), (9821, 83647), (14213, 57799), (21899, 37513)]