19788986

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 37075776

約数和(自身を除く): 17286790

約数列:

[1, 2, 7, 14, 17, 34, 67, 73, 119, 134, 146, 238, 289, 469, 511, 578, 938, 1022, 1139, 1241, 2023, 2278, 2482, 4046, 4891, 7973, 8687, 9782, 15946, 17374, 19363, 21097, 34237, 38726, 42194, 68474, 83147, 135541, 147679, 166294, 271082, 295358, 582029, 1164058, 1413499, 2826998, 9894493, 19788986]

約数ペア:

[(1, 19788986), (2, 9894493), (7, 2826998), (14, 1413499), (17, 1164058), (34, 582029), (67, 295358), (73, 271082), (119, 166294), (134, 147679), (146, 135541), (238, 83147), (289, 68474), (469, 42194), (511, 38726), (578, 34237), (938, 21097), (1022, 19363), (1139, 17374), (1241, 15946), (2023, 9782), (2278, 8687), (2482, 7973), (4046, 4891)]