28142667

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 25079733

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 51, 57, 63, 119, 133, 153, 171, 189, 323, 357, 399, 459, 461, 513, 969, 1071, 1197, 1383, 2261, 2907, 3213, 3227, 3591, 4149, 6783, 7837, 8721, 8759, 9681, 12447, 20349, 23511, 26277, 29043, 54859, 61047, 61313, 70533, 78831, 87129, 148903, 164577, 183939, 211599, 236493, 446709, 493731, 551817, 1042321, 1340127, 1481193, 1655451, 3126963, 4020381, 9380889, 28142667]

約数ペア:

[(1, 28142667), (3, 9380889), (7, 4020381), (9, 3126963), (17, 1655451), (19, 1481193), (21, 1340127), (27, 1042321), (51, 551817), (57, 493731), (63, 446709), (119, 236493), (133, 211599), (153, 183939), (171, 164577), (189, 148903), (323, 87129), (357, 78831), (399, 70533), (459, 61313), (461, 61047), (513, 54859), (969, 29043), (1071, 26277), (1197, 23511), (1383, 20349), (2261, 12447), (2907, 9681), (3213, 8759), (3227, 8721), (3591, 7837), (4149, 6783)]