21810404008

素因数分解:

$2^3\times {\mathrm{3539}}^1\times {\mathrm{770359}}^1$

素因数の和:773904

約数の個数: 16

約数和(自身を含む): 40906116000

約数和(自身を除く): 19095711992

約数列:

[1, 2, 4, 8, 3539, 7078, 14156, 28312, 770359, 1540718, 3081436, 6162872, 2726300501, 5452601002, 10905202004, 21810404008]

約数ペア:

[(1, 21810404008), (2, 10905202004), (4, 5452601002), (8, 2726300501), (3539, 6162872), (7078, 3081436), (14156, 1540718), (28312, 770359)]