21699704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1523}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 44165520

約数和(自身を除く): 22465816

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 274, 548, 1096, 1523, 1781, 3046, 3562, 6092, 7124, 12184, 14248, 19799, 39598, 79196, 158392, 208651, 417302, 834604, 1669208, 2712463, 5424926, 10849852, 21699704]

約数ペア:

[(1, 21699704), (2, 10849852), (4, 5424926), (8, 2712463), (13, 1669208), (26, 834604), (52, 417302), (104, 208651), (137, 158392), (274, 79196), (548, 39598), (1096, 19799), (1523, 14248), (1781, 12184), (3046, 7124), (3562, 6092)]