20667592

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 24951608

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 263, 376, 418, 517, 526, 836, 893, 1034, 1052, 1672, 1786, 2068, 2104, 2893, 3572, 4136, 4997, 5786, 7144, 9823, 9994, 11572, 12361, 19646, 19988, 23144, 24722, 39292, 39976, 49444, 54967, 78584, 98888, 109934, 135971, 219868, 234859, 271942, 439736, 469718, 543884, 939436, 1087768, 1878872, 2583449, 5166898, 10333796, 20667592]

約数ペア:

[(1, 20667592), (2, 10333796), (4, 5166898), (8, 2583449), (11, 1878872), (19, 1087768), (22, 939436), (38, 543884), (44, 469718), (47, 439736), (76, 271942), (88, 234859), (94, 219868), (152, 135971), (188, 109934), (209, 98888), (263, 78584), (376, 54967), (418, 49444), (517, 39976), (526, 39292), (836, 24722), (893, 23144), (1034, 19988), (1052, 19646), (1672, 12361), (1786, 11572), (2068, 9994), (2104, 9823), (2893, 7144), (3572, 5786), (4136, 4997)]