18830775

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{5839}}^1$

素因数の和:5895

約数の個数: 24

約数和(自身を含む): 31863040

約数和(自身を除く): 13032265

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 5839, 17517, 29195, 87585, 145975, 251077, 437925, 753231, 1255385, 3766155, 6276925, 18830775]

約数ペア:

[(1, 18830775), (3, 6276925), (5, 3766155), (15, 1255385), (25, 753231), (43, 437925), (75, 251077), (129, 145975), (215, 87585), (645, 29195), (1075, 17517), (3225, 5839)]