78815457

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{18131}}^1$

素因数の和:18170

約数の個数: 32

約数和(自身を含む): 139253760

約数和(自身を除く): 60438303

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 18131, 54393, 126917, 163179, 380751, 417013, 489537, 1142253, 1251039, 2919091, 3426759, 3753117, 8757273, 11259351, 26271819, 78815457]

約数ペア:

[(1, 78815457), (3, 26271819), (7, 11259351), (9, 8757273), (21, 3753117), (23, 3426759), (27, 2919091), (63, 1251039), (69, 1142253), (161, 489537), (189, 417013), (207, 380751), (483, 163179), (621, 126917), (1449, 54393), (4347, 18131)]