20121480018

素因数分解:

$2^1\times 3^2\times {\mathrm{643}}^1\times {\mathrm{1009}}^1\times {\mathrm{1723}}^1$

素因数の和:3383

約数の個数: 48

約数和(自身を含む): 43732983840

約数和(自身を除く): 23611503822

約数列:

[1, 2, 3, 6, 9, 18, 643, 1009, 1286, 1723, 1929, 2018, 3027, 3446, 3858, 5169, 5787, 6054, 9081, 10338, 11574, 15507, 18162, 31014, 648787, 1107889, 1297574, 1738507, 1946361, 2215778, 3323667, 3477014, 3892722, 5215521, 5839083, 6647334, 9971001, 10431042, 11678166, 15646563, 19942002, 31293126, 1117860001, 2235720002, 3353580003, 6707160006, 10060740009, 20121480018]

約数ペア:

[(1, 20121480018), (2, 10060740009), (3, 6707160006), (6, 3353580003), (9, 2235720002), (18, 1117860001), (643, 31293126), (1009, 19942002), (1286, 15646563), (1723, 11678166), (1929, 10431042), (2018, 9971001), (3027, 6647334), (3446, 5839083), (3858, 5215521), (5169, 3892722), (5787, 3477014), (6054, 3323667), (9081, 2215778), (10338, 1946361), (11574, 1738507), (15507, 1297574), (18162, 1107889), (31014, 648787)]