21989580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{967}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 61797120

約数和(自身を除く): 39807540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 967, 1137, 1516, 1895, 1934, 2274, 2901, 3790, 3868, 4548, 4835, 5685, 5802, 7580, 9670, 11370, 11604, 14505, 19340, 22740, 29010, 58020, 366493, 732986, 1099479, 1465972, 1832465, 2198958, 3664930, 4397916, 5497395, 7329860, 10994790, 21989580]

約数ペア:

[(1, 21989580), (2, 10994790), (3, 7329860), (4, 5497395), (5, 4397916), (6, 3664930), (10, 2198958), (12, 1832465), (15, 1465972), (20, 1099479), (30, 732986), (60, 366493), (379, 58020), (758, 29010), (967, 22740), (1137, 19340), (1516, 14505), (1895, 11604), (1934, 11370), (2274, 9670), (2901, 7580), (3790, 5802), (3868, 5685), (4548, 4835)]