21804748

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 23434292

約数列:

[1, 2, 4, 7, 14, 28, 59, 67, 118, 134, 197, 236, 268, 394, 413, 469, 788, 826, 938, 1379, 1652, 1876, 2758, 3953, 5516, 7906, 11623, 13199, 15812, 23246, 26398, 27671, 46492, 52796, 55342, 81361, 92393, 110684, 162722, 184786, 325444, 369572, 778741, 1557482, 3114964, 5451187, 10902374, 21804748]

約数ペア:

[(1, 21804748), (2, 10902374), (4, 5451187), (7, 3114964), (14, 1557482), (28, 778741), (59, 369572), (67, 325444), (118, 184786), (134, 162722), (197, 110684), (236, 92393), (268, 81361), (394, 55342), (413, 52796), (469, 46492), (788, 27671), (826, 26398), (938, 23246), (1379, 15812), (1652, 13199), (1876, 11623), (2758, 7906), (3953, 5516)]