18938291216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1282387}}^1$

素因数の和:1282479

約数の個数: 40

約数和(自身を含む): 40072060224

約数和(自身を除く): 21133769008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 7384, 14768, 1282387, 2564774, 5129548, 10259096, 16671031, 20518192, 33342062, 66684124, 91049477, 133368248, 182098954, 266736496, 364197908, 728395816, 1183643201, 1456791632, 2367286402, 4734572804, 9469145608, 18938291216]

約数ペア:

[(1, 18938291216), (2, 9469145608), (4, 4734572804), (8, 2367286402), (13, 1456791632), (16, 1183643201), (26, 728395816), (52, 364197908), (71, 266736496), (104, 182098954), (142, 133368248), (208, 91049477), (284, 66684124), (568, 33342062), (923, 20518192), (1136, 16671031), (1846, 10259096), (3692, 5129548), (7384, 2564774), (14768, 1282387)]