19772577

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13249503

約数列:

[1, 3, 9, 11, 29, 33, 71, 87, 97, 99, 213, 261, 291, 319, 639, 781, 873, 957, 1067, 2059, 2343, 2813, 2871, 3201, 6177, 6887, 7029, 8439, 9603, 18531, 20661, 22649, 25317, 30943, 61983, 67947, 75757, 92829, 199723, 203841, 227271, 278487, 599169, 681813, 1797507, 2196953, 6590859, 19772577]

約数ペア:

[(1, 19772577), (3, 6590859), (9, 2196953), (11, 1797507), (29, 681813), (33, 599169), (71, 278487), (87, 227271), (97, 203841), (99, 199723), (213, 92829), (261, 75757), (291, 67947), (319, 61983), (639, 30943), (781, 25317), (873, 22649), (957, 20661), (1067, 18531), (2059, 9603), (2343, 8439), (2813, 7029), (2871, 6887), (3201, 6177)]