20165670903

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1\times {\mathrm{1627}}^1$

素因数の和:1988

約数の個数: 64

約数和(自身を含む): 32274513920

約数和(自身を除く): 12108843017

約数列:

[1, 3, 7, 21, 31, 79, 93, 217, 237, 241, 553, 651, 723, 1627, 1659, 1687, 2449, 4881, 5061, 7347, 7471, 11389, 17143, 19039, 22413, 34167, 50437, 51429, 52297, 57117, 128533, 133273, 151311, 156891, 353059, 385599, 392107, 399819, 590209, 899731, 1059177, 1176321, 1770627, 2699193, 2744749, 3984523, 4131463, 8234247, 11953569, 12155317, 12394389, 27891661, 30976453, 36465951, 83674983, 85087219, 92929359, 216835171, 255261657, 650505513, 960270043, 2880810129, 6721890301, 20165670903]

約数ペア:

[(1, 20165670903), (3, 6721890301), (7, 2880810129), (21, 960270043), (31, 650505513), (79, 255261657), (93, 216835171), (217, 92929359), (237, 85087219), (241, 83674983), (553, 36465951), (651, 30976453), (723, 27891661), (1627, 12394389), (1659, 12155317), (1687, 11953569), (2449, 8234247), (4881, 4131463), (5061, 3984523), (7347, 2744749), (7471, 2699193), (11389, 1770627), (17143, 1176321), (19039, 1059177), (22413, 899731), (34167, 590209), (50437, 399819), (51429, 392107), (52297, 385599), (57117, 353059), (128533, 156891), (133273, 151311)]