21673886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14614114

約数列:

[1, 2, 13, 26, 59, 71, 118, 142, 199, 398, 767, 923, 1534, 1846, 2587, 4189, 5174, 8378, 11741, 14129, 23482, 28258, 54457, 108914, 152633, 183677, 305266, 367354, 833611, 1667222, 10836943, 21673886]

約数ペア:

[(1, 21673886), (2, 10836943), (13, 1667222), (26, 833611), (59, 367354), (71, 305266), (118, 183677), (142, 152633), (199, 108914), (398, 54457), (767, 28258), (923, 23482), (1534, 14129), (1846, 11741), (2587, 8378), (4189, 5174)]