18621008

素因数分解:

$2^4\times 7^1\times {\mathrm{166259}}^1$

素因数の和:166274

約数の個数: 20

約数和(自身を含む): 41232480

約数和(自身を除く): 22611472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 166259, 332518, 665036, 1163813, 1330072, 2327626, 2660144, 4655252, 9310504, 18621008]

約数ペア:

[(1, 18621008), (2, 9310504), (4, 4655252), (7, 2660144), (8, 2327626), (14, 1330072), (16, 1163813), (28, 665036), (56, 332518), (112, 166259)]