21504756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 63221760

約数和(自身を除く): 41717004

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 47, 52, 78, 84, 91, 94, 141, 156, 182, 188, 273, 282, 329, 364, 419, 546, 564, 611, 658, 838, 987, 1092, 1222, 1257, 1316, 1676, 1833, 1974, 2444, 2514, 2933, 3666, 3948, 4277, 5028, 5447, 5866, 7332, 8554, 8799, 10894, 11732, 12831, 16341, 17108, 17598, 19693, 21788, 25662, 32682, 35196, 38129, 39386, 51324, 59079, 65364, 76258, 78772, 114387, 118158, 137851, 152516, 228774, 236316, 256009, 275702, 413553, 457548, 512018, 551404, 768027, 827106, 1024036, 1536054, 1654212, 1792063, 3072108, 3584126, 5376189, 7168252, 10752378, 21504756]

約数ペア:

[(1, 21504756), (2, 10752378), (3, 7168252), (4, 5376189), (6, 3584126), (7, 3072108), (12, 1792063), (13, 1654212), (14, 1536054), (21, 1024036), (26, 827106), (28, 768027), (39, 551404), (42, 512018), (47, 457548), (52, 413553), (78, 275702), (84, 256009), (91, 236316), (94, 228774), (141, 152516), (156, 137851), (182, 118158), (188, 114387), (273, 78772), (282, 76258), (329, 65364), (364, 59079), (419, 51324), (546, 39386), (564, 38129), (611, 35196), (658, 32682), (838, 25662), (987, 21788), (1092, 19693), (1222, 17598), (1257, 17108), (1316, 16341), (1676, 12831), (1833, 11732), (1974, 10894), (2444, 8799), (2514, 8554), (2933, 7332), (3666, 5866), (3948, 5447), (4277, 5028)]