18996896

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 39844224

約数和(自身を除く): 20847328

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 53, 92, 106, 184, 212, 368, 424, 487, 736, 848, 974, 1219, 1696, 1948, 2438, 3896, 4876, 7792, 9752, 11201, 15584, 19504, 22402, 25811, 39008, 44804, 51622, 89608, 103244, 179216, 206488, 358432, 412976, 593653, 825952, 1187306, 2374612, 4749224, 9498448, 18996896]

約数ペア:

[(1, 18996896), (2, 9498448), (4, 4749224), (8, 2374612), (16, 1187306), (23, 825952), (32, 593653), (46, 412976), (53, 358432), (92, 206488), (106, 179216), (184, 103244), (212, 89608), (368, 51622), (424, 44804), (487, 39008), (736, 25811), (848, 22402), (974, 19504), (1219, 15584), (1696, 11201), (1948, 9752), (2438, 7792), (3896, 4876)]