659640321

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{277}}^1\times {\mathrm{991}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 992793600

約数和(自身を除く): 333153279

約数列:

[1, 3, 9, 27, 89, 267, 277, 801, 831, 991, 2403, 2493, 2973, 7479, 8919, 24653, 26757, 73959, 88199, 221877, 264597, 274507, 665631, 793791, 823521, 2381373, 2470563, 7411689, 24431123, 73293369, 219880107, 659640321]

約数ペア:

[(1, 659640321), (3, 219880107), (9, 73293369), (27, 24431123), (89, 7411689), (267, 2470563), (277, 2381373), (801, 823521), (831, 793791), (991, 665631), (2403, 274507), (2493, 264597), (2973, 221877), (7479, 88199), (8919, 73959), (24653, 26757)]