19928808

素因数分解:

$2^3\times 3^3\times {\mathrm{257}}^1\times {\mathrm{359}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 55728000

約数和(自身を除く): 35799192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 257, 359, 514, 718, 771, 1028, 1077, 1436, 1542, 2056, 2154, 2313, 2872, 3084, 3231, 4308, 4626, 6168, 6462, 6939, 8616, 9252, 9693, 12924, 13878, 18504, 19386, 25848, 27756, 38772, 55512, 77544, 92263, 184526, 276789, 369052, 553578, 738104, 830367, 1107156, 1660734, 2214312, 2491101, 3321468, 4982202, 6642936, 9964404, 19928808]

約数ペア:

[(1, 19928808), (2, 9964404), (3, 6642936), (4, 4982202), (6, 3321468), (8, 2491101), (9, 2214312), (12, 1660734), (18, 1107156), (24, 830367), (27, 738104), (36, 553578), (54, 369052), (72, 276789), (108, 184526), (216, 92263), (257, 77544), (359, 55512), (514, 38772), (718, 27756), (771, 25848), (1028, 19386), (1077, 18504), (1436, 13878), (1542, 12924), (2056, 9693), (2154, 9252), (2313, 8616), (2872, 6939), (3084, 6462), (3231, 6168), (4308, 4626)]