81457236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{323243}}^1$

素因数の和:323260

約数の個数: 36

約数和(自身を含む): 235321632

約数和(自身を除く): 153864396

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 323243, 646486, 969729, 1292972, 1939458, 2262701, 2909187, 3878916, 4525402, 5818374, 6788103, 9050804, 11636748, 13576206, 20364309, 27152412, 40728618, 81457236]

約数ペア:

[(1, 81457236), (2, 40728618), (3, 27152412), (4, 20364309), (6, 13576206), (7, 11636748), (9, 9050804), (12, 6788103), (14, 5818374), (18, 4525402), (21, 3878916), (28, 2909187), (36, 2262701), (42, 1939458), (63, 1292972), (84, 969729), (126, 646486), (252, 323243)]