20810504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18191}}^1$

素因数の和:18221

約数の個数: 32

約数和(自身を含む): 45843840

約数和(自身を除く): 25033336

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18191, 36382, 72764, 145528, 200101, 236483, 400202, 472966, 800404, 945932, 1600808, 1891864, 2601313, 5202626, 10405252, 20810504]

約数ペア:

[(1, 20810504), (2, 10405252), (4, 5202626), (8, 2601313), (11, 1891864), (13, 1600808), (22, 945932), (26, 800404), (44, 472966), (52, 400202), (88, 236483), (104, 200101), (143, 145528), (286, 72764), (572, 36382), (1144, 18191)]