20384441

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 26347680

約数和(自身を除く): 5963239

約数列:

[1, 7, 11, 49, 59, 77, 413, 539, 641, 649, 2891, 4487, 4543, 7051, 31409, 31801, 37819, 49357, 264733, 345499, 416009, 1853131, 2912063, 20384441]

約数ペア:

[(1, 20384441), (7, 2912063), (11, 1853131), (49, 416009), (59, 345499), (77, 264733), (413, 49357), (539, 37819), (641, 31801), (649, 31409), (2891, 7051), (4487, 4543)]