20787834

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 42863040

約数和(自身を除く): 22075206

約数列:

[1, 2, 3, 6, 43, 86, 129, 197, 258, 394, 409, 591, 818, 1182, 1227, 2454, 8471, 16942, 17587, 25413, 35174, 50826, 52761, 80573, 105522, 161146, 241719, 483438, 3464639, 6929278, 10393917, 20787834]

約数ペア:

[(1, 20787834), (2, 10393917), (3, 6929278), (6, 3464639), (43, 483438), (86, 241719), (129, 161146), (197, 105522), (258, 80573), (394, 52761), (409, 50826), (591, 35174), (818, 25413), (1182, 17587), (1227, 16942), (2454, 8471)]