21000880914

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2665763}}^1$

素因数の和:2665882

約数の個数: 32

約数和(自身を含む): 45680531904

約数和(自身を除く): 24679650990

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 3939, 7878, 2665763, 5331526, 7997289, 15994578, 34654919, 69309838, 103964757, 207929514, 269242063, 538484126, 807726189, 1615452378, 3500146819, 7000293638, 10500440457, 21000880914]

約数ペア:

[(1, 21000880914), (2, 10500440457), (3, 7000293638), (6, 3500146819), (13, 1615452378), (26, 807726189), (39, 538484126), (78, 269242063), (101, 207929514), (202, 103964757), (303, 69309838), (606, 34654919), (1313, 15994578), (2626, 7997289), (3939, 5331526), (7878, 2665763)]