21359318

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{8761}}^1$

素因数の和:8839

約数の個数: 16

約数和(自身を含む): 34066656

約数和(自身を除く): 12707338

約数列:

[1, 2, 23, 46, 53, 106, 1219, 2438, 8761, 17522, 201503, 403006, 464333, 928666, 10679659, 21359318]

約数ペア:

[(1, 21359318), (2, 10679659), (23, 928666), (46, 464333), (53, 403006), (106, 201503), (1219, 17522), (2438, 8761)]