20905818

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4999}}^1$

素因数の和:5062

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 24454182

約数列:

[1, 2, 3, 6, 17, 34, 41, 51, 82, 102, 123, 246, 697, 1394, 2091, 4182, 4999, 9998, 14997, 29994, 84983, 169966, 204959, 254949, 409918, 509898, 614877, 1229754, 3484303, 6968606, 10452909, 20905818]

約数ペア:

[(1, 20905818), (2, 10452909), (3, 6968606), (6, 3484303), (17, 1229754), (34, 614877), (41, 509898), (51, 409918), (82, 254949), (102, 204959), (123, 169966), (246, 84983), (697, 29994), (1394, 14997), (2091, 9998), (4182, 4999)]