21674896

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 25822064

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 41, 47, 74, 76, 82, 94, 148, 152, 164, 188, 296, 304, 328, 376, 592, 656, 703, 752, 779, 893, 1406, 1517, 1558, 1739, 1786, 1927, 2812, 3034, 3116, 3478, 3572, 3854, 5624, 6068, 6232, 6956, 7144, 7708, 11248, 12136, 12464, 13912, 14288, 15416, 24272, 27824, 28823, 30832, 33041, 36613, 57646, 66082, 71299, 73226, 115292, 132164, 142598, 146452, 230584, 264328, 285196, 292904, 461168, 528656, 570392, 585808, 1140784, 1354681, 2709362, 5418724, 10837448, 21674896]

約数ペア:

[(1, 21674896), (2, 10837448), (4, 5418724), (8, 2709362), (16, 1354681), (19, 1140784), (37, 585808), (38, 570392), (41, 528656), (47, 461168), (74, 292904), (76, 285196), (82, 264328), (94, 230584), (148, 146452), (152, 142598), (164, 132164), (188, 115292), (296, 73226), (304, 71299), (328, 66082), (376, 57646), (592, 36613), (656, 33041), (703, 30832), (752, 28823), (779, 27824), (893, 24272), (1406, 15416), (1517, 14288), (1558, 13912), (1739, 12464), (1786, 12136), (1927, 11248), (2812, 7708), (3034, 7144), (3116, 6956), (3478, 6232), (3572, 6068), (3854, 5624)]