19700739

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13321341

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 243, 251, 323, 459, 513, 753, 969, 1377, 1539, 2259, 2907, 4131, 4267, 4617, 4769, 6777, 8721, 12801, 14307, 20331, 26163, 38403, 42921, 60993, 78489, 81073, 115209, 128763, 243219, 345627, 386289, 729657, 1036881, 1158867, 2188971, 6566913, 19700739]

約数ペア:

[(1, 19700739), (3, 6566913), (9, 2188971), (17, 1158867), (19, 1036881), (27, 729657), (51, 386289), (57, 345627), (81, 243219), (153, 128763), (171, 115209), (243, 81073), (251, 78489), (323, 60993), (459, 42921), (513, 38403), (753, 26163), (969, 20331), (1377, 14307), (1539, 12801), (2259, 8721), (2907, 6777), (4131, 4769), (4267, 4617)]