21267862

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 41081040

約数和(自身を除く): 19813178

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 109, 154, 181, 218, 362, 539, 763, 1078, 1199, 1267, 1526, 1991, 2398, 2534, 3982, 5341, 8393, 8869, 10682, 13937, 16786, 17738, 19729, 27874, 39458, 58751, 97559, 117502, 138103, 195118, 217019, 276206, 434038, 966721, 1519133, 1933442, 3038266, 10633931, 21267862]

約数ペア:

[(1, 21267862), (2, 10633931), (7, 3038266), (11, 1933442), (14, 1519133), (22, 966721), (49, 434038), (77, 276206), (98, 217019), (109, 195118), (154, 138103), (181, 117502), (218, 97559), (362, 58751), (539, 39458), (763, 27874), (1078, 19729), (1199, 17738), (1267, 16786), (1526, 13937), (1991, 10682), (2398, 8869), (2534, 8393), (3982, 5341)]