21982068

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 58201416

約数和(自身を除く): 36219348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 53, 82, 106, 123, 159, 164, 212, 246, 281, 318, 369, 477, 492, 562, 636, 738, 843, 954, 1124, 1476, 1686, 1908, 2173, 2529, 3372, 4346, 5058, 6519, 8692, 10116, 11521, 13038, 14893, 19557, 23042, 26076, 29786, 34563, 39114, 44679, 46084, 59572, 69126, 78228, 89358, 103689, 134037, 138252, 178716, 207378, 268074, 414756, 536148, 610613, 1221226, 1831839, 2442452, 3663678, 5495517, 7327356, 10991034, 21982068]

約数ペア:

[(1, 21982068), (2, 10991034), (3, 7327356), (4, 5495517), (6, 3663678), (9, 2442452), (12, 1831839), (18, 1221226), (36, 610613), (41, 536148), (53, 414756), (82, 268074), (106, 207378), (123, 178716), (159, 138252), (164, 134037), (212, 103689), (246, 89358), (281, 78228), (318, 69126), (369, 59572), (477, 46084), (492, 44679), (562, 39114), (636, 34563), (738, 29786), (843, 26076), (954, 23042), (1124, 19557), (1476, 14893), (1686, 13038), (1908, 11521), (2173, 10116), (2529, 8692), (3372, 6519), (4346, 5058)]