20427676

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:510

約数の個数: 36

約数和(自身を含む): 38991456

約数和(自身を除く): 18563780

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 164, 289, 431, 578, 697, 862, 1156, 1394, 1724, 2788, 7327, 11849, 14654, 17671, 23698, 29308, 35342, 47396, 70684, 124559, 249118, 300407, 498236, 600814, 1201628, 5106919, 10213838, 20427676]

約数ペア:

[(1, 20427676), (2, 10213838), (4, 5106919), (17, 1201628), (34, 600814), (41, 498236), (68, 300407), (82, 249118), (164, 124559), (289, 70684), (431, 47396), (578, 35342), (697, 29308), (862, 23698), (1156, 17671), (1394, 14654), (1724, 11849), (2788, 7327)]