7289991

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 12130560

約数和(自身を除く): 4840569

約数列:

[1, 3, 9, 17, 29, 31, 51, 53, 87, 93, 153, 159, 261, 279, 477, 493, 527, 899, 901, 1479, 1537, 1581, 1643, 2697, 2703, 4437, 4611, 4743, 4929, 8091, 8109, 13833, 14787, 15283, 26129, 27931, 45849, 47647, 78387, 83793, 137547, 142941, 235161, 251379, 428823, 809999, 2429997, 7289991]

約数ペア:

[(1, 7289991), (3, 2429997), (9, 809999), (17, 428823), (29, 251379), (31, 235161), (51, 142941), (53, 137547), (87, 83793), (93, 78387), (153, 47647), (159, 45849), (261, 27931), (279, 26129), (477, 15283), (493, 14787), (527, 13833), (899, 8109), (901, 8091), (1479, 4929), (1537, 4743), (1581, 4611), (1643, 4437), (2697, 2703)]