21238124

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{2473}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 39485040

約数和(自身を除く): 18246916

約数列:

[1, 2, 4, 19, 38, 76, 113, 226, 452, 2147, 2473, 4294, 4946, 8588, 9892, 46987, 93974, 187948, 279449, 558898, 1117796, 5309531, 10619062, 21238124]

約数ペア:

[(1, 21238124), (2, 10619062), (4, 5309531), (19, 1117796), (38, 558898), (76, 279449), (113, 187948), (226, 93974), (452, 46987), (2147, 9892), (2473, 8588), (4294, 4946)]