21085820460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6890791}}^1$

素因数の和:6890823

約数の個数: 72

約数和(自身を含む): 67722703776

約数和(自身を除く): 46636883316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6890791, 13781582, 20672373, 27563164, 34453955, 41344746, 62017119, 68907910, 82689492, 103361865, 117143447, 124034238, 137815820, 206723730, 234286894, 248068476, 310085595, 351430341, 413447460, 468573788, 585717235, 620171190, 702860682, 1054291023, 1171434470, 1240342380, 1405721364, 1757151705, 2108582046, 2342868940, 3514303410, 4217164092, 5271455115, 7028606820, 10542910230, 21085820460]

約数ペア:

[(1, 21085820460), (2, 10542910230), (3, 7028606820), (4, 5271455115), (5, 4217164092), (6, 3514303410), (9, 2342868940), (10, 2108582046), (12, 1757151705), (15, 1405721364), (17, 1240342380), (18, 1171434470), (20, 1054291023), (30, 702860682), (34, 620171190), (36, 585717235), (45, 468573788), (51, 413447460), (60, 351430341), (68, 310085595), (85, 248068476), (90, 234286894), (102, 206723730), (153, 137815820), (170, 124034238), (180, 117143447), (204, 103361865), (255, 82689492), (306, 68907910), (340, 62017119), (510, 41344746), (612, 34453955), (765, 27563164), (1020, 20672373), (1530, 13781582), (3060, 6890791)]