21237524

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1301}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26009452

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1301, 1484, 2332, 2602, 4081, 5204, 8162, 9107, 14311, 16324, 18214, 28622, 36428, 57244, 68953, 100177, 137906, 200354, 275812, 400708, 482671, 758483, 965342, 1516966, 1930684, 3033932, 5309381, 10618762, 21237524]

約数ペア:

[(1, 21237524), (2, 10618762), (4, 5309381), (7, 3033932), (11, 1930684), (14, 1516966), (22, 965342), (28, 758483), (44, 482671), (53, 400708), (77, 275812), (106, 200354), (154, 137906), (212, 100177), (308, 68953), (371, 57244), (583, 36428), (742, 28622), (1166, 18214), (1301, 16324), (1484, 14311), (2332, 9107), (2602, 8162), (4081, 5204)]