20168964921

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{675881}}^1$

素因数の和:675934

約数の個数: 32

約数和(自身を含む): 32442336000

約数和(自身を除く): 12273371079

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 1029, 1421, 4263, 9947, 29841, 675881, 2027643, 4731167, 14193501, 19600549, 33118169, 58801647, 99354507, 137203843, 231827183, 411611529, 695481549, 960426901, 2881280703, 6722988307, 20168964921]

約数ペア:

[(1, 20168964921), (3, 6722988307), (7, 2881280703), (21, 960426901), (29, 695481549), (49, 411611529), (87, 231827183), (147, 137203843), (203, 99354507), (343, 58801647), (609, 33118169), (1029, 19600549), (1421, 14193501), (4263, 4731167), (9947, 2027643), (29841, 675881)]