21613982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43753}}^1$

素因数の和:43787

約数の個数: 16

約数和(自身を含む): 36753360

約数和(自身を除く): 15139378

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43753, 87506, 568789, 831307, 1137578, 1662614, 10806991, 21613982]

約数ペア:

[(1, 21613982), (2, 10806991), (13, 1662614), (19, 1137578), (26, 831307), (38, 568789), (247, 87506), (494, 43753)]