719788209

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1\times {\mathrm{1151}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 1112702976

約数和(自身を除く): 392914767

約数列:

[1, 3, 7, 21, 97, 291, 307, 679, 921, 1151, 2037, 2149, 3453, 6447, 8057, 24171, 29779, 89337, 111647, 208453, 334941, 353357, 625359, 781529, 1060071, 2344587, 2473499, 7420497, 34275629, 102826887, 239929403, 719788209]

約数ペア:

[(1, 719788209), (3, 239929403), (7, 102826887), (21, 34275629), (97, 7420497), (291, 2473499), (307, 2344587), (679, 1060071), (921, 781529), (1151, 625359), (2037, 353357), (2149, 334941), (3453, 208453), (6447, 111647), (8057, 89337), (24171, 29779)]