21350140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152501}}^1$

素因数の和:152517

約数の個数: 24

約数和(自身を含む): 51240672

約数和(自身を除く): 29890532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152501, 305002, 610004, 762505, 1067507, 1525010, 2135014, 3050020, 4270028, 5337535, 10675070, 21350140]

約数ペア:

[(1, 21350140), (2, 10675070), (4, 5337535), (5, 4270028), (7, 3050020), (10, 2135014), (14, 1525010), (20, 1067507), (28, 762505), (35, 610004), (70, 305002), (140, 152501)]