18216590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1321}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 37692864

約数和(自身を除く): 19476274

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1321, 1379, 1970, 2642, 2758, 6605, 6895, 9247, 13210, 13790, 18494, 46235, 92470, 260237, 520474, 1301185, 1821659, 2602370, 3643318, 9108295, 18216590]

約数ペア:

[(1, 18216590), (2, 9108295), (5, 3643318), (7, 2602370), (10, 1821659), (14, 1301185), (35, 520474), (70, 260237), (197, 92470), (394, 46235), (985, 18494), (1321, 13790), (1379, 13210), (1970, 9247), (2642, 6895), (2758, 6605)]