20955714

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11681}}^1$

素因数の和:11722

約数の個数: 32

約数和(自身を含む): 47101824

約数和(自身を除く): 26146110

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11681, 23362, 35043, 70086, 151853, 268663, 303706, 455559, 537326, 805989, 911118, 1611978, 3492619, 6985238, 10477857, 20955714]

約数ペア:

[(1, 20955714), (2, 10477857), (3, 6985238), (6, 3492619), (13, 1611978), (23, 911118), (26, 805989), (39, 537326), (46, 455559), (69, 303706), (78, 268663), (138, 151853), (299, 70086), (598, 35043), (897, 23362), (1794, 11681)]