19711328

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{967}}^1$

素因数の和:1004

約数の個数: 72

約数和(自身を含む): 48665232

約数和(自身を除く): 28953904

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 967, 1274, 1456, 1568, 1934, 2548, 2912, 3868, 5096, 6769, 7736, 10192, 12571, 13538, 15472, 20384, 25142, 27076, 30944, 47383, 50284, 54152, 87997, 94766, 100568, 108304, 175994, 189532, 201136, 216608, 351988, 379064, 402272, 615979, 703976, 758128, 1231958, 1407952, 1516256, 2463916, 2815904, 4927832, 9855664, 19711328]

約数ペア:

[(1, 19711328), (2, 9855664), (4, 4927832), (7, 2815904), (8, 2463916), (13, 1516256), (14, 1407952), (16, 1231958), (26, 758128), (28, 703976), (32, 615979), (49, 402272), (52, 379064), (56, 351988), (91, 216608), (98, 201136), (104, 189532), (112, 175994), (182, 108304), (196, 100568), (208, 94766), (224, 87997), (364, 54152), (392, 50284), (416, 47383), (637, 30944), (728, 27076), (784, 25142), (967, 20384), (1274, 15472), (1456, 13538), (1568, 12571), (1934, 10192), (2548, 7736), (2912, 6769), (3868, 5096)]