21565278

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{2113}}^1$

素因数の和:2140

約数の個数: 56

約数和(自身を含む): 55454448

約数和(自身を除く): 33889170

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 729, 1134, 1458, 1701, 2113, 3402, 4226, 5103, 6339, 10206, 12678, 14791, 19017, 29582, 38034, 44373, 57051, 88746, 114102, 133119, 171153, 266238, 342306, 399357, 513459, 798714, 1026918, 1198071, 1540377, 2396142, 3080754, 3594213, 7188426, 10782639, 21565278]

約数ペア:

[(1, 21565278), (2, 10782639), (3, 7188426), (6, 3594213), (7, 3080754), (9, 2396142), (14, 1540377), (18, 1198071), (21, 1026918), (27, 798714), (42, 513459), (54, 399357), (63, 342306), (81, 266238), (126, 171153), (162, 133119), (189, 114102), (243, 88746), (378, 57051), (486, 44373), (567, 38034), (729, 29582), (1134, 19017), (1458, 14791), (1701, 12678), (2113, 10206), (3402, 6339), (4226, 5103)]