20216353905

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{26711}}^1$

素因数の和:26883

約数の個数: 72

約数和(自身を含む): 38795440320

約数和(自身を除く): 18579086415

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 139, 165, 363, 417, 495, 605, 695, 1089, 1251, 1529, 1815, 2085, 4587, 5445, 6255, 7645, 13761, 16819, 22935, 26711, 50457, 68805, 80133, 84095, 133555, 151371, 240399, 252285, 293821, 400665, 756855, 881463, 1201995, 1469105, 2644389, 3232031, 3712829, 4407315, 9696093, 11138487, 13221945, 16160155, 18564145, 29088279, 33415461, 40841119, 48480465, 55692435, 122523357, 145441395, 167077305, 204205595, 367570071, 449252309, 612616785, 1347756927, 1837850355, 2246261545, 4043270781, 6738784635, 20216353905]

約数ペア:

[(1, 20216353905), (3, 6738784635), (5, 4043270781), (9, 2246261545), (11, 1837850355), (15, 1347756927), (33, 612616785), (45, 449252309), (55, 367570071), (99, 204205595), (121, 167077305), (139, 145441395), (165, 122523357), (363, 55692435), (417, 48480465), (495, 40841119), (605, 33415461), (695, 29088279), (1089, 18564145), (1251, 16160155), (1529, 13221945), (1815, 11138487), (2085, 9696093), (4587, 4407315), (5445, 3712829), (6255, 3232031), (7645, 2644389), (13761, 1469105), (16819, 1201995), (22935, 881463), (26711, 756855), (50457, 400665), (68805, 293821), (80133, 252285), (84095, 240399), (133555, 151371)]