21981567256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{2591}}^1$

素因数の和:2785

約数の個数: 128

約数和(自身を含む): 48977602560

約数和(自身を除く): 26996035304

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 53, 68, 88, 106, 107, 136, 187, 212, 214, 374, 424, 428, 583, 748, 856, 901, 1166, 1177, 1496, 1802, 1819, 2332, 2354, 2591, 3604, 3638, 4664, 4708, 5182, 5671, 7208, 7276, 9416, 9911, 10364, 11342, 14552, 19822, 20009, 20728, 22684, 28501, 39644, 40018, 44047, 45368, 57002, 62381, 79288, 80036, 88094, 96407, 114004, 124762, 137323, 160072, 176188, 192814, 228008, 249524, 274646, 277237, 352376, 385628, 484517, 499048, 549292, 554474, 771256, 969034, 1060477, 1098584, 1108948, 1510553, 1938068, 2120954, 2217896, 2334491, 3021106, 3049607, 3876136, 4241908, 4668982, 4713029, 6042212, 6099214, 8483816, 9337964, 9426058, 12084424, 12198428, 14693561, 18675928, 18852116, 24396856, 25679401, 29387122, 37704232, 51358802, 51843319, 58774244, 102717604, 103686638, 117548488, 161629171, 205435208, 207373276, 249790537, 323258342, 414746552, 499581074, 646516684, 999162148, 1293033368, 1998324296, 2747695907, 5495391814, 10990783628, 21981567256]

約数ペア:

[(1, 21981567256), (2, 10990783628), (4, 5495391814), (8, 2747695907), (11, 1998324296), (17, 1293033368), (22, 999162148), (34, 646516684), (44, 499581074), (53, 414746552), (68, 323258342), (88, 249790537), (106, 207373276), (107, 205435208), (136, 161629171), (187, 117548488), (212, 103686638), (214, 102717604), (374, 58774244), (424, 51843319), (428, 51358802), (583, 37704232), (748, 29387122), (856, 25679401), (901, 24396856), (1166, 18852116), (1177, 18675928), (1496, 14693561), (1802, 12198428), (1819, 12084424), (2332, 9426058), (2354, 9337964), (2591, 8483816), (3604, 6099214), (3638, 6042212), (4664, 4713029), (4708, 4668982), (5182, 4241908), (5671, 3876136), (7208, 3049607), (7276, 3021106), (9416, 2334491), (9911, 2217896), (10364, 2120954), (11342, 1938068), (14552, 1510553), (19822, 1108948), (20009, 1098584), (20728, 1060477), (22684, 969034), (28501, 771256), (39644, 554474), (40018, 549292), (44047, 499048), (45368, 484517), (57002, 385628), (62381, 352376), (79288, 277237), (80036, 274646), (88094, 249524), (96407, 228008), (114004, 192814), (124762, 176188), (137323, 160072)]