81771354

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{10639}}^1$

素因数の和:10715

約数の個数: 48

約数和(自身を含む): 205820160

約数和(自身を除く): 124048806

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 61, 63, 122, 126, 183, 366, 427, 549, 854, 1098, 1281, 2562, 3843, 7686, 10639, 21278, 31917, 63834, 74473, 95751, 148946, 191502, 223419, 446838, 648979, 670257, 1297958, 1340514, 1946937, 3893874, 4542853, 5840811, 9085706, 11681622, 13628559, 27257118, 40885677, 81771354]

約数ペア:

[(1, 81771354), (2, 40885677), (3, 27257118), (6, 13628559), (7, 11681622), (9, 9085706), (14, 5840811), (18, 4542853), (21, 3893874), (42, 1946937), (61, 1340514), (63, 1297958), (122, 670257), (126, 648979), (183, 446838), (366, 223419), (427, 191502), (549, 148946), (854, 95751), (1098, 74473), (1281, 63834), (2562, 31917), (3843, 21278), (7686, 10639)]