19817406

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 50918400

約数和(自身を除く): 31100994

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 103, 126, 189, 206, 309, 378, 509, 618, 721, 927, 1018, 1442, 1527, 1854, 2163, 2781, 3054, 3563, 4326, 4581, 5562, 6489, 7126, 9162, 10689, 12978, 13743, 19467, 21378, 27486, 32067, 38934, 52427, 64134, 96201, 104854, 157281, 192402, 314562, 366989, 471843, 733978, 943686, 1100967, 1415529, 2201934, 2831058, 3302901, 6605802, 9908703, 19817406]

約数ペア:

[(1, 19817406), (2, 9908703), (3, 6605802), (6, 3302901), (7, 2831058), (9, 2201934), (14, 1415529), (18, 1100967), (21, 943686), (27, 733978), (42, 471843), (54, 366989), (63, 314562), (103, 192402), (126, 157281), (189, 104854), (206, 96201), (309, 64134), (378, 52427), (509, 38934), (618, 32067), (721, 27486), (927, 21378), (1018, 19467), (1442, 13743), (1527, 12978), (1854, 10689), (2163, 9162), (2781, 7126), (3054, 6489), (3563, 5562), (4326, 4581)]