20121247984

素因数分解:

$2^4\times {\mathrm{18553}}^1\times {\mathrm{67783}}^1$

素因数の和:86344

約数の個数: 20

約数和(自身を含む): 38987594416

約数和(自身を除く): 18866346432

約数列:

[1, 2, 4, 8, 16, 18553, 37106, 67783, 74212, 135566, 148424, 271132, 296848, 542264, 1084528, 1257577999, 2515155998, 5030311996, 10060623992, 20121247984]

約数ペア:

[(1, 20121247984), (2, 10060623992), (4, 5030311996), (8, 2515155998), (16, 1257577999), (18553, 1084528), (37106, 542264), (67783, 296848), (74212, 271132), (135566, 148424)]