21592816

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 51385600

約数和(自身を除く): 29792784

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 73, 76, 112, 133, 139, 146, 152, 266, 278, 292, 304, 511, 532, 556, 584, 973, 1022, 1064, 1112, 1168, 1387, 1946, 2044, 2128, 2224, 2641, 2774, 3892, 4088, 5282, 5548, 7784, 8176, 9709, 10147, 10564, 11096, 15568, 18487, 19418, 20294, 21128, 22192, 36974, 38836, 40588, 42256, 71029, 73948, 77672, 81176, 142058, 147896, 155344, 162352, 192793, 284116, 295792, 385586, 568232, 771172, 1136464, 1349551, 1542344, 2699102, 3084688, 5398204, 10796408, 21592816]

約数ペア:

[(1, 21592816), (2, 10796408), (4, 5398204), (7, 3084688), (8, 2699102), (14, 1542344), (16, 1349551), (19, 1136464), (28, 771172), (38, 568232), (56, 385586), (73, 295792), (76, 284116), (112, 192793), (133, 162352), (139, 155344), (146, 147896), (152, 142058), (266, 81176), (278, 77672), (292, 73948), (304, 71029), (511, 42256), (532, 40588), (556, 38836), (584, 36974), (973, 22192), (1022, 21128), (1064, 20294), (1112, 19418), (1168, 18487), (1387, 15568), (1946, 11096), (2044, 10564), (2128, 10147), (2224, 9709), (2641, 8176), (2774, 7784), (3892, 5548), (4088, 5282)]