18550053

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 40

約数和(自身を含む): 29403000

約数和(自身を除く): 10852947

約数列:

[1, 3, 9, 27, 29, 53, 81, 87, 149, 159, 261, 447, 477, 783, 1341, 1431, 1537, 2349, 4023, 4293, 4321, 4611, 7897, 12069, 12963, 13833, 23691, 38889, 41499, 71073, 116667, 124497, 213219, 229013, 350001, 639657, 687039, 2061117, 6183351, 18550053]

約数ペア:

[(1, 18550053), (3, 6183351), (9, 2061117), (27, 687039), (29, 639657), (53, 350001), (81, 229013), (87, 213219), (149, 124497), (159, 116667), (261, 71073), (447, 41499), (477, 38889), (783, 23691), (1341, 13833), (1431, 12963), (1537, 12069), (2349, 7897), (4023, 4611), (4293, 4321)]