21604264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{641}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 44375040

約数和(自身を除く): 22770776

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 383, 641, 766, 1282, 1532, 2564, 3064, 4213, 5128, 7051, 8426, 14102, 16852, 28204, 33704, 56408, 245503, 491006, 982012, 1964024, 2700533, 5401066, 10802132, 21604264]

約数ペア:

[(1, 21604264), (2, 10802132), (4, 5401066), (8, 2700533), (11, 1964024), (22, 982012), (44, 491006), (88, 245503), (383, 56408), (641, 33704), (766, 28204), (1282, 16852), (1532, 14102), (2564, 8426), (3064, 7051), (4213, 5128)]