21385488

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:340

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 37539312

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 131, 152, 179, 228, 262, 304, 358, 393, 456, 524, 537, 716, 786, 912, 1048, 1074, 1432, 1572, 2096, 2148, 2489, 2864, 3144, 3401, 4296, 4978, 6288, 6802, 7467, 8592, 9956, 10203, 13604, 14934, 19912, 20406, 23449, 27208, 29868, 39824, 40812, 46898, 54416, 59736, 70347, 81624, 93796, 119472, 140694, 163248, 187592, 281388, 375184, 445531, 562776, 891062, 1125552, 1336593, 1782124, 2673186, 3564248, 5346372, 7128496, 10692744, 21385488]

約数ペア:

[(1, 21385488), (2, 10692744), (3, 7128496), (4, 5346372), (6, 3564248), (8, 2673186), (12, 1782124), (16, 1336593), (19, 1125552), (24, 891062), (38, 562776), (48, 445531), (57, 375184), (76, 281388), (114, 187592), (131, 163248), (152, 140694), (179, 119472), (228, 93796), (262, 81624), (304, 70347), (358, 59736), (393, 54416), (456, 46898), (524, 40812), (537, 39824), (716, 29868), (786, 27208), (912, 23449), (1048, 20406), (1074, 19912), (1432, 14934), (1572, 13604), (2096, 10203), (2148, 9956), (2489, 8592), (2864, 7467), (3144, 6802), (3401, 6288), (4296, 4978)]