21000613936

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1\times {\mathrm{877}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 42168738528

約数和(自身を除く): 21168124592

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 173, 211, 328, 346, 422, 656, 692, 844, 877, 1384, 1688, 1754, 2768, 3376, 3508, 7016, 7093, 8651, 14032, 14186, 17302, 28372, 34604, 35957, 36503, 56744, 69208, 71914, 73006, 113488, 138416, 143828, 146012, 151721, 185047, 287656, 292024, 303442, 370094, 575312, 584048, 606884, 740188, 1213768, 1480376, 1496623, 2427536, 2960752, 2993246, 5986492, 6220561, 7586927, 11972984, 12441122, 15173854, 23945968, 24882244, 30347708, 32013131, 49764488, 60695416, 64026262, 99528976, 121390832, 128052524, 256105048, 512210096, 1312538371, 2625076742, 5250153484, 10500306968, 21000613936]

約数ペア:

[(1, 21000613936), (2, 10500306968), (4, 5250153484), (8, 2625076742), (16, 1312538371), (41, 512210096), (82, 256105048), (164, 128052524), (173, 121390832), (211, 99528976), (328, 64026262), (346, 60695416), (422, 49764488), (656, 32013131), (692, 30347708), (844, 24882244), (877, 23945968), (1384, 15173854), (1688, 12441122), (1754, 11972984), (2768, 7586927), (3376, 6220561), (3508, 5986492), (7016, 2993246), (7093, 2960752), (8651, 2427536), (14032, 1496623), (14186, 1480376), (17302, 1213768), (28372, 740188), (34604, 606884), (35957, 584048), (36503, 575312), (56744, 370094), (69208, 303442), (71914, 292024), (73006, 287656), (113488, 185047), (138416, 151721), (143828, 146012)]