18231531

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 8621589

約数列:

[1, 3, 17, 51, 59, 73, 83, 177, 219, 249, 1003, 1241, 1411, 3009, 3723, 4233, 4307, 4897, 6059, 12921, 14691, 18177, 73219, 83249, 103003, 219657, 249747, 309009, 357481, 1072443, 6077177, 18231531]

約数ペア:

[(1, 18231531), (3, 6077177), (17, 1072443), (51, 357481), (59, 309009), (73, 249747), (83, 219657), (177, 103003), (219, 83249), (249, 73219), (1003, 18177), (1241, 14691), (1411, 12921), (3009, 6059), (3723, 4897), (4233, 4307)]