20721766

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{607}}^1$

素因数の和:736

約数の個数: 24

約数和(自身を含む): 34046784

約数和(自身を除く): 13325018

約数列:

[1, 2, 13, 26, 101, 169, 202, 338, 607, 1214, 1313, 2626, 7891, 15782, 17069, 34138, 61307, 102583, 122614, 205166, 796991, 1593982, 10360883, 20721766]

約数ペア:

[(1, 20721766), (2, 10360883), (13, 1593982), (26, 796991), (101, 205166), (169, 122614), (202, 102583), (338, 61307), (607, 34138), (1214, 17069), (1313, 15782), (2626, 7891)]