21056104

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1669}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 42084000

約数和(自身を除く): 21027896

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 152, 166, 332, 664, 1577, 1669, 3154, 3338, 6308, 6676, 12616, 13352, 31711, 63422, 126844, 138527, 253688, 277054, 554108, 1108216, 2632013, 5264026, 10528052, 21056104]

約数ペア:

[(1, 21056104), (2, 10528052), (4, 5264026), (8, 2632013), (19, 1108216), (38, 554108), (76, 277054), (83, 253688), (152, 138527), (166, 126844), (332, 63422), (664, 31711), (1577, 13352), (1669, 12616), (3154, 6676), (3338, 6308)]