18291663

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{599}}^1$

素因数の和:653

約数の個数: 40

約数和(自身を含む): 30492000

約数和(自身を除く): 12200337

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 599, 783, 1053, 1131, 1797, 2349, 3393, 5391, 7787, 10179, 16173, 17371, 23361, 30537, 48519, 52113, 70083, 156339, 210249, 225823, 469017, 630747, 677469, 1407051, 2032407, 6097221, 18291663]

約数ペア:

[(1, 18291663), (3, 6097221), (9, 2032407), (13, 1407051), (27, 677469), (29, 630747), (39, 469017), (81, 225823), (87, 210249), (117, 156339), (261, 70083), (351, 52113), (377, 48519), (599, 30537), (783, 23361), (1053, 17371), (1131, 16173), (1797, 10179), (2349, 7787), (3393, 5391)]