21506914

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{541}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 38243520

約数和(自身を除く): 16736606

約数列:

[1, 2, 11, 13, 22, 26, 139, 143, 278, 286, 541, 1082, 1529, 1807, 3058, 3614, 5951, 7033, 11902, 14066, 19877, 39754, 75199, 77363, 150398, 154726, 827189, 977587, 1654378, 1955174, 10753457, 21506914]

約数ペア:

[(1, 21506914), (2, 10753457), (11, 1955174), (13, 1654378), (22, 977587), (26, 827189), (139, 154726), (143, 150398), (278, 77363), (286, 75199), (541, 39754), (1082, 19877), (1529, 14066), (1807, 11902), (3058, 7033), (3614, 5951)]