18779868

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 50957088

約数和(自身を除く): 32177220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 37, 46, 69, 74, 92, 111, 138, 148, 207, 222, 276, 333, 414, 444, 613, 666, 828, 851, 1226, 1332, 1702, 1839, 2452, 2553, 3404, 3678, 5106, 5517, 7356, 7659, 10212, 11034, 14099, 15318, 22068, 22681, 28198, 30636, 42297, 45362, 56396, 68043, 84594, 90724, 126891, 136086, 169188, 204129, 253782, 272172, 408258, 507564, 521663, 816516, 1043326, 1564989, 2086652, 3129978, 4694967, 6259956, 9389934, 18779868]

約数ペア:

[(1, 18779868), (2, 9389934), (3, 6259956), (4, 4694967), (6, 3129978), (9, 2086652), (12, 1564989), (18, 1043326), (23, 816516), (36, 521663), (37, 507564), (46, 408258), (69, 272172), (74, 253782), (92, 204129), (111, 169188), (138, 136086), (148, 126891), (207, 90724), (222, 84594), (276, 68043), (333, 56396), (414, 45362), (444, 42297), (613, 30636), (666, 28198), (828, 22681), (851, 22068), (1226, 15318), (1332, 14099), (1702, 11034), (1839, 10212), (2452, 7659), (2553, 7356), (3404, 5517), (3678, 5106)]