21443180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3361}}^1$

素因数の和:3410

約数の個数: 48

約数和(自身を含む): 50833440

約数和(自身を除く): 29390260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3361, 6380, 6722, 13444, 16805, 33610, 36971, 67220, 73942, 97469, 147884, 184855, 194938, 369710, 389876, 487345, 739420, 974690, 1072159, 1949380, 2144318, 4288636, 5360795, 10721590, 21443180]

約数ペア:

[(1, 21443180), (2, 10721590), (4, 5360795), (5, 4288636), (10, 2144318), (11, 1949380), (20, 1072159), (22, 974690), (29, 739420), (44, 487345), (55, 389876), (58, 369710), (110, 194938), (116, 184855), (145, 147884), (220, 97469), (290, 73942), (319, 67220), (580, 36971), (638, 33610), (1276, 16805), (1595, 13444), (3190, 6722), (3361, 6380)]