20898416

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16963}}^1$

素因数の和:16989

約数の個数: 40

約数和(自身を含む): 50484864

約数和(自身を除く): 29586448

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16963, 33926, 67852, 118741, 135704, 186593, 237482, 271408, 373186, 474964, 746372, 949928, 1306151, 1492744, 1899856, 2612302, 2985488, 5224604, 10449208, 20898416]

約数ペア:

[(1, 20898416), (2, 10449208), (4, 5224604), (7, 2985488), (8, 2612302), (11, 1899856), (14, 1492744), (16, 1306151), (22, 949928), (28, 746372), (44, 474964), (56, 373186), (77, 271408), (88, 237482), (112, 186593), (154, 135704), (176, 118741), (308, 67852), (616, 33926), (1232, 16963)]