20565888007

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{571}}^1\times {\mathrm{2357}}^1$

素因数の和:3031

約数の個数: 32

約数和(自身を含む): 24601674240

約数和(自身を除く): 4035786233

約数列:

[1, 7, 37, 59, 259, 413, 571, 2183, 2357, 3997, 15281, 16499, 21127, 33689, 87209, 139063, 147889, 235823, 610463, 973441, 1246493, 1345847, 5145331, 8725451, 9420929, 36017317, 49796339, 79404973, 348574373, 555834811, 2937984001, 20565888007]

約数ペア:

[(1, 20565888007), (7, 2937984001), (37, 555834811), (59, 348574373), (259, 79404973), (413, 49796339), (571, 36017317), (2183, 9420929), (2357, 8725451), (3997, 5145331), (15281, 1345847), (16499, 1246493), (21127, 973441), (33689, 610463), (87209, 235823), (139063, 147889)]