21896272

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1123

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 23636528

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 79, 136, 158, 272, 316, 632, 1019, 1264, 1343, 2038, 2686, 4076, 5372, 8152, 10744, 16304, 17323, 21488, 34646, 69292, 80501, 138584, 161002, 277168, 322004, 644008, 1288016, 1368517, 2737034, 5474068, 10948136, 21896272]

約数ペア:

[(1, 21896272), (2, 10948136), (4, 5474068), (8, 2737034), (16, 1368517), (17, 1288016), (34, 644008), (68, 322004), (79, 277168), (136, 161002), (158, 138584), (272, 80501), (316, 69292), (632, 34646), (1019, 21488), (1264, 17323), (1343, 16304), (2038, 10744), (2686, 8152), (4076, 5372)]