18959290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8737}}^1$

素因数の和:8782

約数の個数: 32

約数和(自身を含む): 40264704

約数和(自身を除く): 21305414

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 8737, 17474, 43685, 61159, 87370, 122318, 270847, 305795, 541694, 611590, 1354235, 1895929, 2708470, 3791858, 9479645, 18959290]

約数ペア:

[(1, 18959290), (2, 9479645), (5, 3791858), (7, 2708470), (10, 1895929), (14, 1354235), (31, 611590), (35, 541694), (62, 305795), (70, 270847), (155, 122318), (217, 87370), (310, 61159), (434, 43685), (1085, 17474), (2170, 8737)]