20213776821

素因数分解:

$3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{401}}^1\times {\mathrm{9127}}^1$

素因数の和:9801

約数の個数: 32

約数和(自身を含む): 30999564288

約数和(自身を除く): 10785787467

約数列:

[1, 3, 7, 21, 263, 401, 789, 1203, 1841, 2807, 5523, 8421, 9127, 27381, 63889, 105463, 191667, 316389, 738241, 2214723, 2400401, 3659927, 7201203, 10979781, 16802807, 25619489, 50408421, 76858467, 962560801, 2887682403, 6737925607, 20213776821]

約数ペア:

[(1, 20213776821), (3, 6737925607), (7, 2887682403), (21, 962560801), (263, 76858467), (401, 50408421), (789, 25619489), (1203, 16802807), (1841, 10979781), (2807, 7201203), (5523, 3659927), (8421, 2400401), (9127, 2214723), (27381, 738241), (63889, 316389), (105463, 191667)]