21520902

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7457}}^1$

素因数の和:7512

約数の個数: 32

約数和(自身を含む): 47611872

約数和(自身を除く): 26090970

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 7457, 14914, 22371, 44742, 96941, 193882, 275909, 290823, 551818, 581646, 827727, 1655454, 3586817, 7173634, 10760451, 21520902]

約数ペア:

[(1, 21520902), (2, 10760451), (3, 7173634), (6, 3586817), (13, 1655454), (26, 827727), (37, 581646), (39, 551818), (74, 290823), (78, 275909), (111, 193882), (222, 96941), (481, 44742), (962, 22371), (1443, 14914), (2886, 7457)]