21464495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 29332800

約数和(自身を除く): 7868305

約数列:

[1, 5, 13, 29, 59, 65, 145, 193, 295, 377, 767, 965, 1711, 1885, 2509, 3835, 5597, 8555, 11387, 12545, 22243, 27985, 56935, 72761, 111215, 148031, 330223, 363805, 740155, 1651115, 4292899, 21464495]

約数ペア:

[(1, 21464495), (5, 4292899), (13, 1651115), (29, 740155), (59, 363805), (65, 330223), (145, 148031), (193, 111215), (295, 72761), (377, 56935), (767, 27985), (965, 22243), (1711, 12545), (1885, 11387), (2509, 8555), (3835, 5597)]