217680462

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^2\times {\mathrm{2399}}^1$

素因数の和:2549

約数の個数: 36

約数和(自身を含む): 478576800

約数和(自身を除く): 260896338

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 2399, 4798, 5041, 7197, 10082, 14394, 15123, 21591, 30246, 43182, 45369, 90738, 170329, 340658, 510987, 1021974, 1532961, 3065922, 12093359, 24186718, 36280077, 72560154, 108840231, 217680462]

約数ペア:

[(1, 217680462), (2, 108840231), (3, 72560154), (6, 36280077), (9, 24186718), (18, 12093359), (71, 3065922), (142, 1532961), (213, 1021974), (426, 510987), (639, 340658), (1278, 170329), (2399, 90738), (4798, 45369), (5041, 43182), (7197, 30246), (10082, 21591), (14394, 15123)]