21017736

素因数分解:

$2^3\times 3^2\times {\mathrm{251}}^1\times {\mathrm{1163}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 57198960

約数和(自身を除く): 36181224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 251, 502, 753, 1004, 1163, 1506, 2008, 2259, 2326, 3012, 3489, 4518, 4652, 6024, 6978, 9036, 9304, 10467, 13956, 18072, 20934, 27912, 41868, 83736, 291913, 583826, 875739, 1167652, 1751478, 2335304, 2627217, 3502956, 5254434, 7005912, 10508868, 21017736]

約数ペア:

[(1, 21017736), (2, 10508868), (3, 7005912), (4, 5254434), (6, 3502956), (8, 2627217), (9, 2335304), (12, 1751478), (18, 1167652), (24, 875739), (36, 583826), (72, 291913), (251, 83736), (502, 41868), (753, 27912), (1004, 20934), (1163, 18072), (1506, 13956), (2008, 10467), (2259, 9304), (2326, 9036), (3012, 6978), (3489, 6024), (4518, 4652)]