20789944553

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1\times {\mathrm{541}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 24334325760

約数和(自身を除く): 3544381207

約数列:

[1, 7, 73, 157, 479, 511, 541, 1099, 3353, 3787, 11461, 34967, 39493, 75203, 80227, 84937, 244769, 259139, 276451, 526421, 594559, 1813973, 5489819, 6200401, 18917147, 38428733, 40684823, 43402807, 132420029, 284793761, 2969992079, 20789944553]

約数ペア:

[(1, 20789944553), (7, 2969992079), (73, 284793761), (157, 132420029), (479, 43402807), (511, 40684823), (541, 38428733), (1099, 18917147), (3353, 6200401), (3787, 5489819), (11461, 1813973), (34967, 594559), (39493, 526421), (75203, 276451), (80227, 259139), (84937, 244769)]