20979596

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3037}}^1$

素因数の和:3209

約数の個数: 24

約数和(自身を含む): 40320336

約数和(自身を除く): 19340740

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3037, 3454, 6074, 6908, 12148, 33407, 66814, 133628, 476809, 953618, 1907236, 5244899, 10489798, 20979596]

約数ペア:

[(1, 20979596), (2, 10489798), (4, 5244899), (11, 1907236), (22, 953618), (44, 476809), (157, 133628), (314, 66814), (628, 33407), (1727, 12148), (3037, 6908), (3454, 6074)]