21240537

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1951}}^1$

素因数の和:2164

約数の個数: 16

約数和(自身を含む): 29982720

約数和(自身を除く): 8742183

約数列:

[1, 3, 19, 57, 191, 573, 1951, 3629, 5853, 10887, 37069, 111207, 372641, 1117923, 7080179, 21240537]

約数ペア:

[(1, 21240537), (3, 7080179), (19, 1117923), (57, 372641), (191, 111207), (573, 37069), (1951, 10887), (3629, 5853)]