219189999

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1621}}^1$

素因数の和:1815

約数の個数: 32

約数和(自身を含む): 343812096

約数和(自身を除く): 124622097

約数列:

[1, 3, 7, 21, 47, 137, 141, 329, 411, 959, 987, 1621, 2877, 4863, 6439, 11347, 19317, 34041, 45073, 76187, 135219, 222077, 228561, 533309, 666231, 1554539, 1599927, 4663617, 10437619, 31312857, 73063333, 219189999]

約数ペア:

[(1, 219189999), (3, 73063333), (7, 31312857), (21, 10437619), (47, 4663617), (137, 1599927), (141, 1554539), (329, 666231), (411, 533309), (959, 228561), (987, 222077), (1621, 135219), (2877, 76187), (4863, 45073), (6439, 34041), (11347, 19317)]