21860510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2459}}^1$

素因数の和:2600

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 23482210

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2459, 4445, 4918, 8890, 12295, 17213, 24590, 34426, 86065, 172130, 312293, 624586, 1561465, 2186051, 3122930, 4372102, 10930255, 21860510]

約数ペア:

[(1, 21860510), (2, 10930255), (5, 4372102), (7, 3122930), (10, 2186051), (14, 1561465), (35, 624586), (70, 312293), (127, 172130), (254, 86065), (635, 34426), (889, 24590), (1270, 17213), (1778, 12295), (2459, 8890), (4445, 4918)]