21972104

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{673}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 52410240

約数和(自身を除く): 30438136

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 53, 56, 77, 88, 106, 154, 212, 308, 371, 424, 583, 616, 673, 742, 1166, 1346, 1484, 2332, 2692, 2968, 4081, 4664, 4711, 5384, 7403, 8162, 9422, 14806, 16324, 18844, 29612, 32648, 35669, 37688, 51821, 59224, 71338, 103642, 142676, 207284, 249683, 285352, 392359, 414568, 499366, 784718, 998732, 1569436, 1997464, 2746513, 3138872, 5493026, 10986052, 21972104]

約数ペア:

[(1, 21972104), (2, 10986052), (4, 5493026), (7, 3138872), (8, 2746513), (11, 1997464), (14, 1569436), (22, 998732), (28, 784718), (44, 499366), (53, 414568), (56, 392359), (77, 285352), (88, 249683), (106, 207284), (154, 142676), (212, 103642), (308, 71338), (371, 59224), (424, 51821), (583, 37688), (616, 35669), (673, 32648), (742, 29612), (1166, 18844), (1346, 16324), (1484, 14806), (2332, 9422), (2692, 8162), (2968, 7403), (4081, 5384), (4664, 4711)]