21607124

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 49379904

約数和(自身を除く): 27772780

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 73, 77, 124, 146, 154, 217, 292, 308, 341, 434, 511, 682, 803, 868, 961, 1022, 1364, 1606, 1922, 2044, 2263, 2387, 3212, 3844, 4526, 4774, 5621, 6727, 9052, 9548, 10571, 11242, 13454, 15841, 21142, 22484, 24893, 26908, 31682, 42284, 49786, 63364, 70153, 73997, 99572, 140306, 147994, 174251, 280612, 295988, 348502, 491071, 697004, 771683, 982142, 1543366, 1964284, 3086732, 5401781, 10803562, 21607124]

約数ペア:

[(1, 21607124), (2, 10803562), (4, 5401781), (7, 3086732), (11, 1964284), (14, 1543366), (22, 982142), (28, 771683), (31, 697004), (44, 491071), (62, 348502), (73, 295988), (77, 280612), (124, 174251), (146, 147994), (154, 140306), (217, 99572), (292, 73997), (308, 70153), (341, 63364), (434, 49786), (511, 42284), (682, 31682), (803, 26908), (868, 24893), (961, 22484), (1022, 21142), (1364, 15841), (1606, 13454), (1922, 11242), (2044, 10571), (2263, 9548), (2387, 9052), (3212, 6727), (3844, 5621), (4526, 4774)]