21511060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 47592720

約数和(自身を除く): 26081660

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 709, 740, 820, 1418, 1517, 2836, 3034, 3545, 6068, 7090, 7585, 14180, 15170, 26233, 29069, 30340, 52466, 58138, 104932, 116276, 131165, 145345, 262330, 290690, 524660, 581380, 1075553, 2151106, 4302212, 5377765, 10755530, 21511060]

約数ペア:

[(1, 21511060), (2, 10755530), (4, 5377765), (5, 4302212), (10, 2151106), (20, 1075553), (37, 581380), (41, 524660), (74, 290690), (82, 262330), (148, 145345), (164, 131165), (185, 116276), (205, 104932), (370, 58138), (410, 52466), (709, 30340), (740, 29069), (820, 26233), (1418, 15170), (1517, 14180), (2836, 7585), (3034, 7090), (3545, 6068)]