21498018

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 22349982

約数列:

[1, 2, 3, 6, 139, 149, 173, 278, 298, 346, 417, 447, 519, 834, 894, 1038, 20711, 24047, 25777, 41422, 48094, 51554, 62133, 72141, 77331, 124266, 144282, 154662, 3583003, 7166006, 10749009, 21498018]

約数ペア:

[(1, 21498018), (2, 10749009), (3, 7166006), (6, 3583003), (139, 154662), (149, 144282), (173, 124266), (278, 77331), (298, 72141), (346, 62133), (417, 51554), (447, 48094), (519, 41422), (834, 25777), (894, 24047), (1038, 20711)]