18388016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1009}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 38323440

約数和(自身を除く): 19935424

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1009, 1072, 1139, 2018, 2278, 4036, 4556, 8072, 9112, 16144, 17153, 18224, 34306, 67603, 68612, 135206, 137224, 270412, 274448, 540824, 1081648, 1149251, 2298502, 4597004, 9194008, 18388016]

約数ペア:

[(1, 18388016), (2, 9194008), (4, 4597004), (8, 2298502), (16, 1149251), (17, 1081648), (34, 540824), (67, 274448), (68, 270412), (134, 137224), (136, 135206), (268, 68612), (272, 67603), (536, 34306), (1009, 18224), (1072, 17153), (1139, 16144), (2018, 9112), (2278, 8072), (4036, 4556)]