20717952

素因数分解:

$2^7\times 3^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 55536960

約数和(自身を除く): 34819008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 163, 192, 326, 331, 384, 489, 652, 662, 978, 993, 1304, 1324, 1956, 1986, 2608, 2648, 3912, 3972, 5216, 5296, 7824, 7944, 10432, 10592, 15648, 15888, 20864, 21184, 31296, 31776, 42368, 53953, 62592, 63552, 107906, 127104, 161859, 215812, 323718, 431624, 647436, 863248, 1294872, 1726496, 2589744, 3452992, 5179488, 6905984, 10358976, 20717952]

約数ペア:

[(1, 20717952), (2, 10358976), (3, 6905984), (4, 5179488), (6, 3452992), (8, 2589744), (12, 1726496), (16, 1294872), (24, 863248), (32, 647436), (48, 431624), (64, 323718), (96, 215812), (128, 161859), (163, 127104), (192, 107906), (326, 63552), (331, 62592), (384, 53953), (489, 42368), (652, 31776), (662, 31296), (978, 21184), (993, 20864), (1304, 15888), (1324, 15648), (1956, 10592), (1986, 10432), (2608, 7944), (2648, 7824), (3912, 5296), (3972, 5216)]