18248321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 23670528

約数和(自身を除く): 5422207

約数列:

[1, 7, 13, 41, 67, 73, 91, 287, 469, 511, 533, 871, 949, 2747, 2993, 3731, 4891, 6097, 6643, 19229, 20951, 34237, 35711, 38909, 63583, 200531, 249977, 272363, 445081, 1403717, 2606903, 18248321]

約数ペア:

[(1, 18248321), (7, 2606903), (13, 1403717), (41, 445081), (67, 272363), (73, 249977), (91, 200531), (287, 63583), (469, 38909), (511, 35711), (533, 34237), (871, 20951), (949, 19229), (2747, 6643), (2993, 6097), (3731, 4891)]