15863121

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 40

約数和(自身を含む): 25013120

約数和(自身を除く): 9149999

約数列:

[1, 3, 9, 27, 37, 67, 79, 81, 111, 201, 237, 333, 603, 711, 999, 1809, 2133, 2479, 2923, 2997, 5293, 5427, 6399, 7437, 8769, 15879, 22311, 26307, 47637, 66933, 78921, 142911, 195841, 200799, 236763, 428733, 587523, 1762569, 5287707, 15863121]

約数ペア:

[(1, 15863121), (3, 5287707), (9, 1762569), (27, 587523), (37, 428733), (67, 236763), (79, 200799), (81, 195841), (111, 142911), (201, 78921), (237, 66933), (333, 47637), (603, 26307), (711, 22311), (999, 15879), (1809, 8769), (2133, 7437), (2479, 6399), (2923, 5427), (2997, 5293)]