20459868

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11923}}^1$

素因数の和:11954

約数の個数: 48

約数和(自身を含む): 56090496

約数和(自身を除く): 35630628

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 11923, 23846, 35769, 47692, 71538, 131153, 143076, 154999, 262306, 309998, 393459, 464997, 524612, 619996, 786918, 929994, 1573836, 1704989, 1859988, 3409978, 5114967, 6819956, 10229934, 20459868]

約数ペア:

[(1, 20459868), (2, 10229934), (3, 6819956), (4, 5114967), (6, 3409978), (11, 1859988), (12, 1704989), (13, 1573836), (22, 929994), (26, 786918), (33, 619996), (39, 524612), (44, 464997), (52, 393459), (66, 309998), (78, 262306), (132, 154999), (143, 143076), (156, 131153), (286, 71538), (429, 47692), (572, 35769), (858, 23846), (1716, 11923)]