19358548

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 40755456

約数和(自身を除く): 21396908

約数列:

[1, 2, 4, 11, 22, 23, 37, 44, 46, 47, 74, 92, 94, 121, 148, 188, 242, 253, 407, 484, 506, 517, 814, 851, 1012, 1034, 1081, 1628, 1702, 1739, 2068, 2162, 2783, 3404, 3478, 4324, 4477, 5566, 5687, 6956, 8954, 9361, 11132, 11374, 11891, 17908, 18722, 19129, 22748, 23782, 37444, 38258, 39997, 47564, 76516, 79994, 102971, 130801, 159988, 205942, 210419, 261602, 411884, 420838, 439967, 523204, 841676, 879934, 1759868, 4839637, 9679274, 19358548]

約数ペア:

[(1, 19358548), (2, 9679274), (4, 4839637), (11, 1759868), (22, 879934), (23, 841676), (37, 523204), (44, 439967), (46, 420838), (47, 411884), (74, 261602), (92, 210419), (94, 205942), (121, 159988), (148, 130801), (188, 102971), (242, 79994), (253, 76516), (407, 47564), (484, 39997), (506, 38258), (517, 37444), (814, 23782), (851, 22748), (1012, 19129), (1034, 18722), (1081, 17908), (1628, 11891), (1702, 11374), (1739, 11132), (2068, 9361), (2162, 8954), (2783, 6956), (3404, 5687), (3478, 5566), (4324, 4477)]