287789751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{7547}}^1$

素因数の和:7795

約数の個数: 24

約数和(自身を含む): 439595520

約数和(自身を除く): 151805769

約数列:

[1, 3, 9, 19, 57, 171, 223, 669, 2007, 4237, 7547, 12711, 22641, 38133, 67923, 143393, 430179, 1290537, 1682981, 5048943, 15146829, 31976639, 95929917, 287789751]

約数ペア:

[(1, 287789751), (3, 95929917), (9, 31976639), (19, 15146829), (57, 5048943), (171, 1682981), (223, 1290537), (669, 430179), (2007, 143393), (4237, 67923), (7547, 38133), (12711, 22641)]