21080506

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:294

約数の個数: 24

約数和(自身を含む): 33362784

約数和(自身を除く): 12282278

約数列:

[1, 2, 29, 58, 83, 151, 166, 302, 841, 1682, 2407, 4379, 4814, 8758, 12533, 25066, 69803, 126991, 139606, 253982, 363457, 726914, 10540253, 21080506]

約数ペア:

[(1, 21080506), (2, 10540253), (29, 726914), (58, 363457), (83, 253982), (151, 139606), (166, 126991), (302, 69803), (841, 25066), (1682, 12533), (2407, 8758), (4379, 4814)]