21037294

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11779}}^1$

素因数の和:11847

約数の個数: 16

約数和(自身を含む): 33926400

約数和(自身を除く): 12889106

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11779, 23558, 223801, 447602, 553613, 1107226, 10518647, 21037294]

約数ペア:

[(1, 21037294), (2, 10518647), (19, 1107226), (38, 553613), (47, 447602), (94, 223801), (893, 23558), (1786, 11779)]