18125955

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 33336576

約数和(自身を除く): 15210621

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 83, 115, 207, 211, 249, 345, 415, 633, 747, 1035, 1055, 1245, 1899, 1909, 3165, 3735, 4853, 5727, 9495, 9545, 14559, 17181, 17513, 24265, 28635, 43677, 52539, 72795, 85905, 87565, 157617, 218385, 262695, 402799, 788085, 1208397, 2013995, 3625191, 6041985, 18125955]

約数ペア:

[(1, 18125955), (3, 6041985), (5, 3625191), (9, 2013995), (15, 1208397), (23, 788085), (45, 402799), (69, 262695), (83, 218385), (115, 157617), (207, 87565), (211, 85905), (249, 72795), (345, 52539), (415, 43677), (633, 28635), (747, 24265), (1035, 17513), (1055, 17181), (1245, 14559), (1899, 9545), (1909, 9495), (3165, 5727), (3735, 4853)]