21179281

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:744

約数の個数: 16

約数和(自身を含む): 23420160

約数和(自身を除く): 2240879

約数列:

[1, 19, 37, 47, 641, 703, 893, 1739, 12179, 23717, 30127, 33041, 450623, 572413, 1114699, 21179281]

約数ペア:

[(1, 21179281), (19, 1114699), (37, 572413), (47, 450623), (641, 33041), (703, 30127), (893, 23717), (1739, 12179)]