19787229

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4079}}^1$

素因数の和:4110

約数の個数: 36

約数和(自身を含む): 36279360

約数和(自身を除く): 16492131

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4079, 4851, 12237, 28553, 36711, 44869, 85659, 134607, 199871, 256977, 314083, 403821, 599613, 942249, 1798839, 2198581, 2826747, 6595743, 19787229]

約数ペア:

[(1, 19787229), (3, 6595743), (7, 2826747), (9, 2198581), (11, 1798839), (21, 942249), (33, 599613), (49, 403821), (63, 314083), (77, 256977), (99, 199871), (147, 134607), (231, 85659), (441, 44869), (539, 36711), (693, 28553), (1617, 12237), (4079, 4851)]