18487684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{243259}}^1$

素因数の和:243282

約数の個数: 12

約数和(自身を含む): 34056400

約数和(自身を除く): 15568716

約数列:

[1, 2, 4, 19, 38, 76, 243259, 486518, 973036, 4621921, 9243842, 18487684]

約数ペア:

[(1, 18487684), (2, 9243842), (4, 4621921), (19, 973036), (38, 486518), (76, 243259)]