81117666

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4049}}^1$

素因数の和:4120

約数の個数: 64

約数和(自身を含む): 209952000

約数和(自身を除く): 128834334

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 53, 54, 63, 106, 126, 159, 189, 318, 371, 378, 477, 742, 954, 1113, 1431, 2226, 2862, 3339, 4049, 6678, 8098, 10017, 12147, 20034, 24294, 28343, 36441, 56686, 72882, 85029, 109323, 170058, 214597, 218646, 255087, 429194, 510174, 643791, 765261, 1287582, 1502179, 1530522, 1931373, 3004358, 3862746, 4506537, 5794119, 9013074, 11588238, 13519611, 27039222, 40558833, 81117666]

約数ペア:

[(1, 81117666), (2, 40558833), (3, 27039222), (6, 13519611), (7, 11588238), (9, 9013074), (14, 5794119), (18, 4506537), (21, 3862746), (27, 3004358), (42, 1931373), (53, 1530522), (54, 1502179), (63, 1287582), (106, 765261), (126, 643791), (159, 510174), (189, 429194), (318, 255087), (371, 218646), (378, 214597), (477, 170058), (742, 109323), (954, 85029), (1113, 72882), (1431, 56686), (2226, 36441), (2862, 28343), (3339, 24294), (4049, 20034), (6678, 12147), (8098, 10017)]