19867155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 20388333

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 103, 105, 165, 167, 231, 309, 385, 501, 515, 721, 835, 1133, 1155, 1169, 1545, 1837, 2163, 2505, 3399, 3507, 3605, 5511, 5665, 5845, 7931, 9185, 10815, 12859, 16995, 17201, 17535, 23793, 27555, 38577, 39655, 51603, 64295, 86005, 118965, 120407, 189211, 192885, 258015, 361221, 567633, 602035, 946055, 1324477, 1806105, 2838165, 3973431, 6622385, 19867155]

約数ペア:

[(1, 19867155), (3, 6622385), (5, 3973431), (7, 2838165), (11, 1806105), (15, 1324477), (21, 946055), (33, 602035), (35, 567633), (55, 361221), (77, 258015), (103, 192885), (105, 189211), (165, 120407), (167, 118965), (231, 86005), (309, 64295), (385, 51603), (501, 39655), (515, 38577), (721, 27555), (835, 23793), (1133, 17535), (1155, 17201), (1169, 16995), (1545, 12859), (1837, 10815), (2163, 9185), (2505, 7931), (3399, 5845), (3507, 5665), (3605, 5511)]