21512498

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66809}}^1$

素因数の和:66841

約数の個数: 16

約数和(自身を含む): 38482560

約数和(自身を除く): 16970062

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66809, 133618, 467663, 935326, 1536607, 3073214, 10756249, 21512498]

約数ペア:

[(1, 21512498), (2, 10756249), (7, 3073214), (14, 1536607), (23, 935326), (46, 467663), (161, 133618), (322, 66809)]