28194777

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 46730880

約数和(自身を除く): 18536103

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 167, 169, 333, 351, 481, 501, 507, 999, 1443, 1503, 1521, 2171, 4329, 4509, 4563, 6179, 6253, 6513, 12987, 18537, 18759, 19539, 28223, 55611, 56277, 58617, 80327, 84669, 166833, 168831, 240981, 254007, 722943, 762021, 1044251, 2168829, 3132753, 9398259, 28194777]

約数ペア:

[(1, 28194777), (3, 9398259), (9, 3132753), (13, 2168829), (27, 1044251), (37, 762021), (39, 722943), (111, 254007), (117, 240981), (167, 168831), (169, 166833), (333, 84669), (351, 80327), (481, 58617), (501, 56277), (507, 55611), (999, 28223), (1443, 19539), (1503, 18759), (1521, 18537), (2171, 12987), (4329, 6513), (4509, 6253), (4563, 6179)]