21701876

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^3\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 46220160

約数和(自身を除く): 24518284

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 113, 133, 226, 266, 361, 452, 532, 722, 791, 1444, 1582, 2147, 2527, 3164, 4294, 5054, 6859, 8588, 10108, 13718, 15029, 27436, 30058, 40793, 48013, 60116, 81586, 96026, 163172, 192052, 285551, 571102, 775067, 1142204, 1550134, 3100268, 5425469, 10850938, 21701876]

約数ペア:

[(1, 21701876), (2, 10850938), (4, 5425469), (7, 3100268), (14, 1550134), (19, 1142204), (28, 775067), (38, 571102), (76, 285551), (113, 192052), (133, 163172), (226, 96026), (266, 81586), (361, 60116), (452, 48013), (532, 40793), (722, 30058), (791, 27436), (1444, 15029), (1582, 13718), (2147, 10108), (2527, 8588), (3164, 6859), (4294, 5054)]