20767367621

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{128861}}^1$

素因数の和:128922

約数の個数: 48

約数和(自身を含む): 29615580288

約数和(自身を除く): 8848212667

約数列:

[1, 7, 11, 13, 23, 49, 77, 91, 143, 161, 253, 299, 539, 637, 1001, 1127, 1771, 2093, 3289, 7007, 12397, 14651, 23023, 128861, 161161, 902027, 1417471, 1675193, 2963803, 6314189, 9922297, 11726351, 18427123, 20746621, 32601833, 38529439, 69456079, 82084457, 128989861, 145226347, 228212831, 269706073, 423823829, 902929027, 1597489817, 1887942511, 2966766803, 20767367621]

約数ペア:

[(1, 20767367621), (7, 2966766803), (11, 1887942511), (13, 1597489817), (23, 902929027), (49, 423823829), (77, 269706073), (91, 228212831), (143, 145226347), (161, 128989861), (253, 82084457), (299, 69456079), (539, 38529439), (637, 32601833), (1001, 20746621), (1127, 18427123), (1771, 11726351), (2093, 9922297), (3289, 6314189), (7007, 2963803), (12397, 1675193), (14651, 1417471), (23023, 902027), (128861, 161161)]