21201616

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7321}}^1$

素因数の和:7510

約数の個数: 20

約数和(自身を含む): 41310724

約数和(自身を除く): 20109108

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7321, 14642, 29284, 58568, 117136, 1325101, 2650202, 5300404, 10600808, 21201616]

約数ペア:

[(1, 21201616), (2, 10600808), (4, 5300404), (8, 2650202), (16, 1325101), (181, 117136), (362, 58568), (724, 29284), (1448, 14642), (2896, 7321)]