20813535

素因数分解:

$3^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{733}}^1$

素因数の和:1375

約数の個数: 24

約数和(自身を含む): 36183264

約数和(自身を除く): 15369729

約数列:

[1, 3, 5, 9, 15, 45, 631, 733, 1893, 2199, 3155, 3665, 5679, 6597, 9465, 10995, 28395, 32985, 462523, 1387569, 2312615, 4162707, 6937845, 20813535]

約数ペア:

[(1, 20813535), (3, 6937845), (5, 4162707), (9, 2312615), (15, 1387569), (45, 462523), (631, 32985), (733, 28395), (1893, 10995), (2199, 9465), (3155, 6597), (3665, 5679)]