78163911

素因数分解:

$3^2\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1877}}^1$

素因数の和:2551

約数の個数: 24

約数和(自身を含む): 129296544

約数和(自身を除く): 51132633

約数列:

[1, 3, 7, 9, 21, 63, 661, 1877, 1983, 4627, 5631, 5949, 13139, 13881, 16893, 39417, 41643, 118251, 1240697, 3722091, 8684879, 11166273, 26054637, 78163911]

約数ペア:

[(1, 78163911), (3, 26054637), (7, 11166273), (9, 8684879), (21, 3722091), (63, 1240697), (661, 118251), (1877, 41643), (1983, 39417), (4627, 16893), (5631, 13881), (5949, 13139)]