21981492

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3613}}^1$

素因数の和:3649

約数の個数: 54

約数和(自身を含む): 60183942

約数和(自身を除く): 38202450

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3613, 6084, 7226, 10839, 14452, 21678, 32517, 43356, 46969, 65034, 93938, 130068, 140907, 187876, 281814, 422721, 563628, 610597, 845442, 1221194, 1690884, 1831791, 2442388, 3663582, 5495373, 7327164, 10990746, 21981492]

約数ペア:

[(1, 21981492), (2, 10990746), (3, 7327164), (4, 5495373), (6, 3663582), (9, 2442388), (12, 1831791), (13, 1690884), (18, 1221194), (26, 845442), (36, 610597), (39, 563628), (52, 422721), (78, 281814), (117, 187876), (156, 140907), (169, 130068), (234, 93938), (338, 65034), (468, 46969), (507, 43356), (676, 32517), (1014, 21678), (1521, 14452), (2028, 10839), (3042, 7226), (3613, 6084)]