20118852

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42989}}^1$

素因数の和:43012

約数の個数: 36

約数和(自身を含む): 54769260

約数和(自身を除く): 34650408

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42989, 85978, 128967, 171956, 257934, 386901, 515868, 558857, 773802, 1117714, 1547604, 1676571, 2235428, 3353142, 5029713, 6706284, 10059426, 20118852]

約数ペア:

[(1, 20118852), (2, 10059426), (3, 6706284), (4, 5029713), (6, 3353142), (9, 2235428), (12, 1676571), (13, 1547604), (18, 1117714), (26, 773802), (36, 558857), (39, 515868), (52, 386901), (78, 257934), (117, 171956), (156, 128967), (234, 85978), (468, 42989)]