18700947

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 28098720

約数和(自身を除く): 9397773

約数列:

[1, 3, 9, 37, 89, 111, 267, 333, 631, 801, 1893, 3293, 5679, 9879, 23347, 29637, 56159, 70041, 168477, 210123, 505431, 2077883, 6233649, 18700947]

約数ペア:

[(1, 18700947), (3, 6233649), (9, 2077883), (37, 505431), (89, 210123), (111, 168477), (267, 70041), (333, 56159), (631, 29637), (801, 23347), (1893, 9879), (3293, 5679)]