20729916

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 54774720

約数和(自身を除く): 34044804

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 79, 111, 148, 158, 197, 222, 237, 316, 333, 394, 444, 474, 591, 666, 711, 788, 948, 1182, 1332, 1422, 1773, 2364, 2844, 2923, 3546, 5846, 7092, 7289, 8769, 11692, 14578, 15563, 17538, 21867, 26307, 29156, 31126, 35076, 43734, 46689, 52614, 62252, 65601, 87468, 93378, 105228, 131202, 140067, 186756, 262404, 280134, 560268, 575831, 1151662, 1727493, 2303324, 3454986, 5182479, 6909972, 10364958, 20729916]

約数ペア:

[(1, 20729916), (2, 10364958), (3, 6909972), (4, 5182479), (6, 3454986), (9, 2303324), (12, 1727493), (18, 1151662), (36, 575831), (37, 560268), (74, 280134), (79, 262404), (111, 186756), (148, 140067), (158, 131202), (197, 105228), (222, 93378), (237, 87468), (316, 65601), (333, 62252), (394, 52614), (444, 46689), (474, 43734), (591, 35076), (666, 31126), (711, 29156), (788, 26307), (948, 21867), (1182, 17538), (1332, 15563), (1422, 14578), (1773, 11692), (2364, 8769), (2844, 7289), (2923, 7092), (3546, 5846)]