19720844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1499}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22615156

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1499, 2998, 3289, 5996, 6578, 13156, 16489, 19487, 32978, 34477, 38974, 65956, 68954, 77948, 137908, 214357, 379247, 428714, 448201, 758494, 857428, 896402, 1516988, 1792804, 4930211, 9860422, 19720844]

約数ペア:

[(1, 19720844), (2, 9860422), (4, 4930211), (11, 1792804), (13, 1516988), (22, 896402), (23, 857428), (26, 758494), (44, 448201), (46, 428714), (52, 379247), (92, 214357), (143, 137908), (253, 77948), (286, 68954), (299, 65956), (506, 38974), (572, 34477), (598, 32978), (1012, 19487), (1196, 16489), (1499, 13156), (2998, 6578), (3289, 5996)]