20485401

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6781}}^1$

素因数の和:6856

約数の個数: 16

約数和(自身を含む): 29298240

約数和(自身を除く): 8812839

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6781, 20343, 128839, 359393, 386517, 1078179, 6828467, 20485401]

約数ペア:

[(1, 20485401), (3, 6828467), (19, 1078179), (53, 386517), (57, 359393), (159, 128839), (1007, 20343), (3021, 6781)]