15987996

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{4001}}^1$

素因数の和:4051

約数の個数: 48

約数和(自身を含む): 42581280

約数和(自身を除く): 26593284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 4001, 8002, 12003, 16004, 24006, 36009, 48012, 72018, 108027, 144036, 148037, 216054, 296074, 432108, 444111, 592148, 888222, 1332333, 1776444, 2664666, 3996999, 5329332, 7993998, 15987996]

約数ペア:

[(1, 15987996), (2, 7993998), (3, 5329332), (4, 3996999), (6, 2664666), (9, 1776444), (12, 1332333), (18, 888222), (27, 592148), (36, 444111), (37, 432108), (54, 296074), (74, 216054), (108, 148037), (111, 144036), (148, 108027), (222, 72018), (333, 48012), (444, 36009), (666, 24006), (999, 16004), (1332, 12003), (1998, 8002), (3996, 4001)]