18985304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7937}}^1$

素因数の和:7979

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 21022216

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 184, 299, 598, 1196, 2392, 7937, 15874, 31748, 63496, 103181, 182551, 206362, 365102, 412724, 730204, 825448, 1460408, 2373163, 4746326, 9492652, 18985304]

約数ペア:

[(1, 18985304), (2, 9492652), (4, 4746326), (8, 2373163), (13, 1460408), (23, 825448), (26, 730204), (46, 412724), (52, 365102), (92, 206362), (104, 182551), (184, 103181), (299, 63496), (598, 31748), (1196, 15874), (2392, 7937)]