20974380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49939}}^1$

素因数の和:49958

約数の個数: 48

約数和(自身を含む): 67119360

約数和(自身を除く): 46144980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49939, 99878, 149817, 199756, 249695, 299634, 349573, 499390, 599268, 699146, 749085, 998780, 1048719, 1398292, 1498170, 1747865, 2097438, 2996340, 3495730, 4194876, 5243595, 6991460, 10487190, 20974380]

約数ペア:

[(1, 20974380), (2, 10487190), (3, 6991460), (4, 5243595), (5, 4194876), (6, 3495730), (7, 2996340), (10, 2097438), (12, 1747865), (14, 1498170), (15, 1398292), (20, 1048719), (21, 998780), (28, 749085), (30, 699146), (35, 599268), (42, 499390), (60, 349573), (70, 299634), (84, 249695), (105, 199756), (140, 149817), (210, 99878), (420, 49939)]