21580504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12907}}^1$

素因数の和:12943

約数の個数: 32

約数和(自身を含む): 46468800

約数和(自身を除く): 24888296

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12907, 25814, 51628, 103256, 141977, 245233, 283954, 490466, 567908, 980932, 1135816, 1961864, 2697563, 5395126, 10790252, 21580504]

約数ペア:

[(1, 21580504), (2, 10790252), (4, 5395126), (8, 2697563), (11, 1961864), (19, 1135816), (22, 980932), (38, 567908), (44, 490466), (76, 283954), (88, 245233), (152, 141977), (209, 103256), (418, 51628), (836, 25814), (1672, 12907)]