18485168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{491}}^1$

素因数の和:693

約数の個数: 40

約数和(自身を含む): 38862096

約数和(自身を除く): 20376928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 491, 724, 982, 1448, 1964, 2353, 2896, 3928, 4706, 6383, 7856, 9412, 12766, 18824, 25532, 37648, 51064, 88871, 102128, 177742, 355484, 710968, 1155323, 1421936, 2310646, 4621292, 9242584, 18485168]

約数ペア:

[(1, 18485168), (2, 9242584), (4, 4621292), (8, 2310646), (13, 1421936), (16, 1155323), (26, 710968), (52, 355484), (104, 177742), (181, 102128), (208, 88871), (362, 51064), (491, 37648), (724, 25532), (982, 18824), (1448, 12766), (1964, 9412), (2353, 7856), (2896, 6383), (3928, 4706)]