20983578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4129}}^1$

素因数の和:4163

約数の個数: 48

約数和(自身を含む): 52731840

約数和(自身を除く): 31748262

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 121, 154, 231, 242, 363, 462, 726, 847, 1694, 2541, 4129, 5082, 8258, 12387, 24774, 28903, 45419, 57806, 86709, 90838, 136257, 173418, 272514, 317933, 499609, 635866, 953799, 999218, 1498827, 1907598, 2997654, 3497263, 6994526, 10491789, 20983578]

約数ペア:

[(1, 20983578), (2, 10491789), (3, 6994526), (6, 3497263), (7, 2997654), (11, 1907598), (14, 1498827), (21, 999218), (22, 953799), (33, 635866), (42, 499609), (66, 317933), (77, 272514), (121, 173418), (154, 136257), (231, 90838), (242, 86709), (363, 57806), (462, 45419), (726, 28903), (847, 24774), (1694, 12387), (2541, 8258), (4129, 5082)]