21380458816

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:872

約数の個数: 112

約数和(自身を含む): 45447143040

約数和(自身を除く): 24066684224

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 179, 272, 311, 353, 358, 544, 622, 706, 716, 1088, 1244, 1412, 1432, 2488, 2824, 2864, 3043, 4976, 5287, 5648, 5728, 6001, 6086, 9952, 10574, 11296, 11456, 12002, 12172, 19904, 21148, 22592, 24004, 24344, 42296, 48008, 48688, 55669, 63187, 84592, 96016, 97376, 109783, 111338, 126374, 169184, 192032, 194752, 219566, 222676, 252748, 338368, 384064, 439132, 445352, 505496, 878264, 890704, 946373, 1010992, 1074179, 1756528, 1781408, 1866311, 1892746, 2021984, 2148358, 3513056, 3562816, 3732622, 3785492, 4043968, 4296716, 7026112, 7465244, 7570984, 8593432, 14930488, 15141968, 17186864, 19651157, 29860976, 30283936, 34373728, 39302314, 59721952, 60567872, 68747456, 78604628, 119443904, 157209256, 314418512, 334069669, 628837024, 668139338, 1257674048, 1336278676, 2672557352, 5345114704, 10690229408, 21380458816]

約数ペア:

[(1, 21380458816), (2, 10690229408), (4, 5345114704), (8, 2672557352), (16, 1336278676), (17, 1257674048), (32, 668139338), (34, 628837024), (64, 334069669), (68, 314418512), (136, 157209256), (179, 119443904), (272, 78604628), (311, 68747456), (353, 60567872), (358, 59721952), (544, 39302314), (622, 34373728), (706, 30283936), (716, 29860976), (1088, 19651157), (1244, 17186864), (1412, 15141968), (1432, 14930488), (2488, 8593432), (2824, 7570984), (2864, 7465244), (3043, 7026112), (4976, 4296716), (5287, 4043968), (5648, 3785492), (5728, 3732622), (6001, 3562816), (6086, 3513056), (9952, 2148358), (10574, 2021984), (11296, 1892746), (11456, 1866311), (12002, 1781408), (12172, 1756528), (19904, 1074179), (21148, 1010992), (22592, 946373), (24004, 890704), (24344, 878264), (42296, 505496), (48008, 445352), (48688, 439132), (55669, 384064), (63187, 338368), (84592, 252748), (96016, 222676), (97376, 219566), (109783, 194752), (111338, 192032), (126374, 169184)]