259771821

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 377118720

約数和(自身を除く): 117346899

約数列:

[1, 3, 23, 29, 69, 87, 131, 393, 667, 991, 2001, 2973, 3013, 3799, 9039, 11397, 22793, 28739, 68379, 86217, 87377, 129821, 262131, 389463, 660997, 1982991, 2985883, 3764809, 8957649, 11294427, 86590607, 259771821]

約数ペア:

[(1, 259771821), (3, 86590607), (23, 11294427), (29, 8957649), (69, 3764809), (87, 2985883), (131, 1982991), (393, 660997), (667, 389463), (991, 262131), (2001, 129821), (2973, 87377), (3013, 86217), (3799, 68379), (9039, 28739), (11397, 22793)]