19764588781

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{27983}}^1$

素因数の和:28161

約数の個数: 32

約数和(自身を含む): 24371601408

約数和(自身を除く): 4607012627

約数列:

[1, 7, 23, 41, 107, 161, 287, 749, 943, 2461, 4387, 6601, 17227, 27983, 30709, 100901, 195881, 643609, 706307, 1147303, 2994181, 4505263, 8031121, 20959267, 26387969, 68866163, 122761421, 184715783, 482063141, 859329947, 2823512683, 19764588781]

約数ペア:

[(1, 19764588781), (7, 2823512683), (23, 859329947), (41, 482063141), (107, 184715783), (161, 122761421), (287, 68866163), (749, 26387969), (943, 20959267), (2461, 8031121), (4387, 4505263), (6601, 2994181), (17227, 1147303), (27983, 706307), (30709, 643609), (100901, 195881)]