21289008

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 59961440

約数和(自身を除く): 38672432

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 109, 156, 208, 218, 312, 313, 327, 436, 624, 626, 654, 872, 939, 1252, 1308, 1417, 1744, 1878, 2504, 2616, 2834, 3756, 4069, 4251, 5008, 5232, 5668, 7512, 8138, 8502, 11336, 12207, 15024, 16276, 17004, 22672, 24414, 32552, 34008, 34117, 48828, 65104, 68016, 68234, 97656, 102351, 136468, 195312, 204702, 272936, 409404, 443521, 545872, 818808, 887042, 1330563, 1637616, 1774084, 2661126, 3548168, 5322252, 7096336, 10644504, 21289008]

約数ペア:

[(1, 21289008), (2, 10644504), (3, 7096336), (4, 5322252), (6, 3548168), (8, 2661126), (12, 1774084), (13, 1637616), (16, 1330563), (24, 887042), (26, 818808), (39, 545872), (48, 443521), (52, 409404), (78, 272936), (104, 204702), (109, 195312), (156, 136468), (208, 102351), (218, 97656), (312, 68234), (313, 68016), (327, 65104), (436, 48828), (624, 34117), (626, 34008), (654, 32552), (872, 24414), (939, 22672), (1252, 17004), (1308, 16276), (1417, 15024), (1744, 12207), (1878, 11336), (2504, 8502), (2616, 8138), (2834, 7512), (3756, 5668), (4069, 5232), (4251, 5008)]