21990192

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{65447}}^1$

素因数の和:65465

約数の個数: 40

約数和(自身を含む): 64924416

約数和(自身を除く): 42934224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 65447, 130894, 196341, 261788, 392682, 458129, 523576, 785364, 916258, 1047152, 1374387, 1570728, 1832516, 2748774, 3141456, 3665032, 5497548, 7330064, 10995096, 21990192]

約数ペア:

[(1, 21990192), (2, 10995096), (3, 7330064), (4, 5497548), (6, 3665032), (7, 3141456), (8, 2748774), (12, 1832516), (14, 1570728), (16, 1374387), (21, 1047152), (24, 916258), (28, 785364), (42, 523576), (48, 458129), (56, 392682), (84, 261788), (112, 196341), (168, 130894), (336, 65447)]