21940765140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52239917}}^1$

素因数の和:52239936

約数の個数: 48

約数和(自身を含む): 70210449792

約数和(自身を除く): 48269684652

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, 52239917, 104479834, 156719751, 208959668, 261199585, 313439502, 365679419, 522399170, 626879004, 731358838, 783598755, 1044798340, 1097038257, 1462717676, 1567197510, 1828397095, 2194076514, 3134395020, 3656794190, 4388153028, 5485191285, 7313588380, 10970382570, 21940765140]

約数ペア:

[(1, 21940765140), (2, 10970382570), (3, 7313588380), (4, 5485191285), (5, 4388153028), (6, 3656794190), (7, 3134395020), (10, 2194076514), (12, 1828397095), (14, 1567197510), (15, 1462717676), (20, 1097038257), (21, 1044798340), (28, 783598755), (30, 731358838), (35, 626879004), (42, 522399170), (60, 365679419), (70, 313439502), (84, 261199585), (105, 208959668), (140, 156719751), (210, 104479834), (420, 52239917)]